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f5314dd5 DM |
1 | // sparc.cc -- sparc target support for gold. |
2 | ||
8c2bf391 | 3 | // Copyright 2008, 2009, 2010, 2011, 2012 Free Software Foundation, Inc. |
f5314dd5 DM |
4 | // Written by David S. Miller <davem@davemloft.net>. |
5 | ||
6 | // This file is part of gold. | |
7 | ||
8 | // This program is free software; you can redistribute it and/or modify | |
9 | // it under the terms of the GNU General Public License as published by | |
10 | // the Free Software Foundation; either version 3 of the License, or | |
11 | // (at your option) any later version. | |
12 | ||
13 | // This program is distributed in the hope that it will be useful, | |
14 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | // GNU General Public License for more details. | |
17 | ||
18 | // You should have received a copy of the GNU General Public License | |
19 | // along with this program; if not, write to the Free Software | |
20 | // Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, | |
21 | // MA 02110-1301, USA. | |
22 | ||
23 | #include "gold.h" | |
24 | ||
25 | #include <cstdlib> | |
26 | #include <cstdio> | |
27 | #include <cstring> | |
28 | ||
29 | #include "elfcpp.h" | |
30 | #include "parameters.h" | |
31 | #include "reloc.h" | |
32 | #include "sparc.h" | |
33 | #include "object.h" | |
34 | #include "symtab.h" | |
35 | #include "layout.h" | |
36 | #include "output.h" | |
12c0daef | 37 | #include "copy-relocs.h" |
f5314dd5 DM |
38 | #include "target.h" |
39 | #include "target-reloc.h" | |
40 | #include "target-select.h" | |
41 | #include "tls.h" | |
42 | #include "errors.h" | |
f345227a | 43 | #include "gc.h" |
f5314dd5 DM |
44 | |
45 | namespace | |
46 | { | |
47 | ||
48 | using namespace gold; | |
49 | ||
50 | template<int size, bool big_endian> | |
51 | class Output_data_plt_sparc; | |
52 | ||
53 | template<int size, bool big_endian> | |
54 | class Target_sparc : public Sized_target<size, big_endian> | |
55 | { | |
56 | public: | |
57 | typedef Output_data_reloc<elfcpp::SHT_RELA, true, size, big_endian> Reloc_section; | |
58 | ||
59 | Target_sparc() | |
60 | : Sized_target<size, big_endian>(&sparc_info), | |
8c2bf391 | 61 | got_(NULL), plt_(NULL), rela_dyn_(NULL), rela_ifunc_(NULL), |
12c0daef ILT |
62 | copy_relocs_(elfcpp::R_SPARC_COPY), dynbss_(NULL), |
63 | got_mod_index_offset_(-1U), tls_get_addr_sym_(NULL) | |
f5314dd5 DM |
64 | { |
65 | } | |
66 | ||
6d03d481 ST |
67 | // Process the relocations to determine unreferenced sections for |
68 | // garbage collection. | |
69 | void | |
ad0f2072 | 70 | gc_process_relocs(Symbol_table* symtab, |
6d03d481 | 71 | Layout* layout, |
6fa2a40b | 72 | Sized_relobj_file<size, big_endian>* object, |
6d03d481 ST |
73 | unsigned int data_shndx, |
74 | unsigned int sh_type, | |
75 | const unsigned char* prelocs, | |
76 | size_t reloc_count, | |
77 | Output_section* output_section, | |
78 | bool needs_special_offset_handling, | |
79 | size_t local_symbol_count, | |
80 | const unsigned char* plocal_symbols); | |
81 | ||
f5314dd5 DM |
82 | // Scan the relocations to look for symbol adjustments. |
83 | void | |
ad0f2072 | 84 | scan_relocs(Symbol_table* symtab, |
f5314dd5 | 85 | Layout* layout, |
6fa2a40b | 86 | Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
87 | unsigned int data_shndx, |
88 | unsigned int sh_type, | |
89 | const unsigned char* prelocs, | |
90 | size_t reloc_count, | |
91 | Output_section* output_section, | |
92 | bool needs_special_offset_handling, | |
93 | size_t local_symbol_count, | |
94 | const unsigned char* plocal_symbols); | |
95 | // Finalize the sections. | |
96 | void | |
f59f41f3 | 97 | do_finalize_sections(Layout*, const Input_objects*, Symbol_table*); |
f5314dd5 DM |
98 | |
99 | // Return the value to use for a dynamic which requires special | |
100 | // treatment. | |
101 | uint64_t | |
102 | do_dynsym_value(const Symbol*) const; | |
103 | ||
104 | // Relocate a section. | |
105 | void | |
106 | relocate_section(const Relocate_info<size, big_endian>*, | |
107 | unsigned int sh_type, | |
108 | const unsigned char* prelocs, | |
109 | size_t reloc_count, | |
110 | Output_section* output_section, | |
111 | bool needs_special_offset_handling, | |
112 | unsigned char* view, | |
113 | typename elfcpp::Elf_types<size>::Elf_Addr view_address, | |
364c7fa5 ILT |
114 | section_size_type view_size, |
115 | const Reloc_symbol_changes*); | |
f5314dd5 DM |
116 | |
117 | // Scan the relocs during a relocatable link. | |
118 | void | |
ad0f2072 | 119 | scan_relocatable_relocs(Symbol_table* symtab, |
f5314dd5 | 120 | Layout* layout, |
6fa2a40b | 121 | Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
122 | unsigned int data_shndx, |
123 | unsigned int sh_type, | |
124 | const unsigned char* prelocs, | |
125 | size_t reloc_count, | |
126 | Output_section* output_section, | |
127 | bool needs_special_offset_handling, | |
128 | size_t local_symbol_count, | |
129 | const unsigned char* plocal_symbols, | |
130 | Relocatable_relocs*); | |
131 | ||
132 | // Relocate a section during a relocatable link. | |
133 | void | |
134 | relocate_for_relocatable(const Relocate_info<size, big_endian>*, | |
135 | unsigned int sh_type, | |
136 | const unsigned char* prelocs, | |
137 | size_t reloc_count, | |
138 | Output_section* output_section, | |
139 | off_t offset_in_output_section, | |
140 | const Relocatable_relocs*, | |
141 | unsigned char* view, | |
142 | typename elfcpp::Elf_types<size>::Elf_Addr view_address, | |
143 | section_size_type view_size, | |
144 | unsigned char* reloc_view, | |
145 | section_size_type reloc_view_size); | |
146 | // Return whether SYM is defined by the ABI. | |
147 | bool | |
9c2d0ef9 | 148 | do_is_defined_by_abi(const Symbol* sym) const |
f5314dd5 DM |
149 | { |
150 | // XXX Really need to support this better... | |
151 | if (sym->type() == elfcpp::STT_SPARC_REGISTER) | |
152 | return 1; | |
153 | ||
154 | return strcmp(sym->name(), "___tls_get_addr") == 0; | |
155 | } | |
156 | ||
8c2bf391 DM |
157 | // Return the PLT address to use for a global symbol. |
158 | uint64_t | |
159 | do_plt_address_for_global(const Symbol* gsym) const | |
160 | { return this->plt_section()->address_for_global(gsym); } | |
161 | ||
162 | uint64_t | |
163 | do_plt_address_for_local(const Relobj* relobj, unsigned int symndx) const | |
164 | { return this->plt_section()->address_for_local(relobj, symndx); } | |
165 | ||
9efe6174 ILT |
166 | // Return whether there is a GOT section. |
167 | bool | |
168 | has_got_section() const | |
169 | { return this->got_ != NULL; } | |
170 | ||
f5314dd5 DM |
171 | // Return the size of the GOT section. |
172 | section_size_type | |
0e70b911 | 173 | got_size() const |
f5314dd5 DM |
174 | { |
175 | gold_assert(this->got_ != NULL); | |
176 | return this->got_->data_size(); | |
177 | } | |
178 | ||
0e70b911 CC |
179 | // Return the number of entries in the GOT. |
180 | unsigned int | |
181 | got_entry_count() const | |
182 | { | |
183 | if (this->got_ == NULL) | |
184 | return 0; | |
185 | return this->got_size() / (size / 8); | |
186 | } | |
187 | ||
188 | // Return the number of entries in the PLT. | |
189 | unsigned int | |
190 | plt_entry_count() const; | |
191 | ||
192 | // Return the offset of the first non-reserved PLT entry. | |
193 | unsigned int | |
194 | first_plt_entry_offset() const; | |
195 | ||
196 | // Return the size of each PLT entry. | |
197 | unsigned int | |
198 | plt_entry_size() const; | |
199 | ||
f5314dd5 DM |
200 | private: |
201 | ||
202 | // The class which scans relocations. | |
32b769e1 | 203 | class Scan |
f5314dd5 | 204 | { |
32b769e1 DM |
205 | public: |
206 | Scan() | |
207 | : issued_non_pic_error_(false) | |
208 | { } | |
209 | ||
95a2c8d6 RS |
210 | static inline int |
211 | get_reference_flags(unsigned int r_type); | |
212 | ||
f5314dd5 | 213 | inline void |
ad0f2072 | 214 | local(Symbol_table* symtab, Layout* layout, Target_sparc* target, |
6fa2a40b | 215 | Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
216 | unsigned int data_shndx, |
217 | Output_section* output_section, | |
218 | const elfcpp::Rela<size, big_endian>& reloc, unsigned int r_type, | |
219 | const elfcpp::Sym<size, big_endian>& lsym); | |
220 | ||
221 | inline void | |
ad0f2072 | 222 | global(Symbol_table* symtab, Layout* layout, Target_sparc* target, |
6fa2a40b | 223 | Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
224 | unsigned int data_shndx, |
225 | Output_section* output_section, | |
226 | const elfcpp::Rela<size, big_endian>& reloc, unsigned int r_type, | |
227 | Symbol* gsym); | |
228 | ||
21bb3914 ST |
229 | inline bool |
230 | local_reloc_may_be_function_pointer(Symbol_table* , Layout* , | |
231 | Target_sparc* , | |
6fa2a40b | 232 | Sized_relobj_file<size, big_endian>* , |
21bb3914 ST |
233 | unsigned int , |
234 | Output_section* , | |
235 | const elfcpp::Rela<size, big_endian>& , | |
236 | unsigned int , | |
237 | const elfcpp::Sym<size, big_endian>&) | |
238 | { return false; } | |
239 | ||
240 | inline bool | |
241 | global_reloc_may_be_function_pointer(Symbol_table* , Layout* , | |
242 | Target_sparc* , | |
6fa2a40b | 243 | Sized_relobj_file<size, big_endian>* , |
21bb3914 ST |
244 | unsigned int , |
245 | Output_section* , | |
246 | const elfcpp::Rela<size, | |
247 | big_endian>& , | |
248 | unsigned int , Symbol*) | |
249 | { return false; } | |
250 | ||
251 | ||
32b769e1 | 252 | private: |
f5314dd5 | 253 | static void |
6fa2a40b | 254 | unsupported_reloc_local(Sized_relobj_file<size, big_endian>*, |
f5314dd5 DM |
255 | unsigned int r_type); |
256 | ||
257 | static void | |
6fa2a40b | 258 | unsupported_reloc_global(Sized_relobj_file<size, big_endian>*, |
f5314dd5 DM |
259 | unsigned int r_type, Symbol*); |
260 | ||
261 | static void | |
262 | generate_tls_call(Symbol_table* symtab, Layout* layout, | |
263 | Target_sparc* target); | |
32b769e1 DM |
264 | |
265 | void | |
266 | check_non_pic(Relobj*, unsigned int r_type); | |
267 | ||
8c2bf391 DM |
268 | bool |
269 | reloc_needs_plt_for_ifunc(Sized_relobj_file<size, big_endian>*, | |
270 | unsigned int r_type); | |
271 | ||
32b769e1 DM |
272 | // Whether we have issued an error about a non-PIC compilation. |
273 | bool issued_non_pic_error_; | |
f5314dd5 DM |
274 | }; |
275 | ||
276 | // The class which implements relocation. | |
277 | class Relocate | |
278 | { | |
279 | public: | |
280 | Relocate() | |
abd242a9 | 281 | : ignore_gd_add_(false), reloc_adjust_addr_(NULL) |
f5314dd5 DM |
282 | { } |
283 | ||
284 | ~Relocate() | |
285 | { | |
286 | if (this->ignore_gd_add_) | |
287 | { | |
288 | // FIXME: This needs to specify the location somehow. | |
289 | gold_error(_("missing expected TLS relocation")); | |
290 | } | |
291 | } | |
292 | ||
293 | // Do a relocation. Return false if the caller should not issue | |
294 | // any warnings about this relocation. | |
295 | inline bool | |
296 | relocate(const Relocate_info<size, big_endian>*, Target_sparc*, | |
031cdbed ILT |
297 | Output_section*, size_t relnum, |
298 | const elfcpp::Rela<size, big_endian>&, | |
f5314dd5 DM |
299 | unsigned int r_type, const Sized_symbol<size>*, |
300 | const Symbol_value<size>*, | |
301 | unsigned char*, | |
302 | typename elfcpp::Elf_types<size>::Elf_Addr, | |
303 | section_size_type); | |
304 | ||
305 | private: | |
306 | // Do a TLS relocation. | |
307 | inline void | |
308 | relocate_tls(const Relocate_info<size, big_endian>*, Target_sparc* target, | |
309 | size_t relnum, const elfcpp::Rela<size, big_endian>&, | |
310 | unsigned int r_type, const Sized_symbol<size>*, | |
311 | const Symbol_value<size>*, | |
312 | unsigned char*, | |
313 | typename elfcpp::Elf_types<size>::Elf_Addr, | |
314 | section_size_type); | |
315 | ||
316 | // Ignore the next relocation which should be R_SPARC_TLS_GD_ADD | |
317 | bool ignore_gd_add_; | |
abd242a9 DM |
318 | |
319 | // If we hit a reloc at this view address, adjust it back by 4 bytes. | |
320 | unsigned char *reloc_adjust_addr_; | |
f5314dd5 DM |
321 | }; |
322 | ||
323 | // A class which returns the size required for a relocation type, | |
324 | // used while scanning relocs during a relocatable link. | |
325 | class Relocatable_size_for_reloc | |
326 | { | |
327 | public: | |
328 | unsigned int | |
329 | get_size_for_reloc(unsigned int, Relobj*); | |
330 | }; | |
331 | ||
332 | // Get the GOT section, creating it if necessary. | |
333 | Output_data_got<size, big_endian>* | |
334 | got_section(Symbol_table*, Layout*); | |
335 | ||
8c2bf391 DM |
336 | // Create the PLT section. |
337 | void | |
338 | make_plt_section(Symbol_table* symtab, Layout* layout); | |
339 | ||
f5314dd5 DM |
340 | // Create a PLT entry for a global symbol. |
341 | void | |
342 | make_plt_entry(Symbol_table*, Layout*, Symbol*); | |
343 | ||
8c2bf391 DM |
344 | // Create a PLT entry for a local STT_GNU_IFUNC symbol. |
345 | void | |
346 | make_local_ifunc_plt_entry(Symbol_table*, Layout*, | |
347 | Sized_relobj_file<size, big_endian>* relobj, | |
348 | unsigned int local_sym_index); | |
349 | ||
f5314dd5 DM |
350 | // Create a GOT entry for the TLS module index. |
351 | unsigned int | |
352 | got_mod_index_entry(Symbol_table* symtab, Layout* layout, | |
6fa2a40b | 353 | Sized_relobj_file<size, big_endian>* object); |
f5314dd5 DM |
354 | |
355 | // Return the gsym for "__tls_get_addr". Cache if not already | |
356 | // cached. | |
357 | Symbol* | |
358 | tls_get_addr_sym(Symbol_table* symtab) | |
359 | { | |
360 | if (!this->tls_get_addr_sym_) | |
361 | this->tls_get_addr_sym_ = symtab->lookup("__tls_get_addr", NULL); | |
362 | gold_assert(this->tls_get_addr_sym_); | |
363 | return this->tls_get_addr_sym_; | |
364 | } | |
365 | ||
366 | // Get the PLT section. | |
8c2bf391 | 367 | Output_data_plt_sparc<size, big_endian>* |
f5314dd5 DM |
368 | plt_section() const |
369 | { | |
370 | gold_assert(this->plt_ != NULL); | |
371 | return this->plt_; | |
372 | } | |
373 | ||
374 | // Get the dynamic reloc section, creating it if necessary. | |
375 | Reloc_section* | |
376 | rela_dyn_section(Layout*); | |
377 | ||
8c2bf391 DM |
378 | // Get the section to use for IFUNC relocations. |
379 | Reloc_section* | |
380 | rela_ifunc_section(Layout*); | |
381 | ||
f5314dd5 DM |
382 | // Copy a relocation against a global symbol. |
383 | void | |
ef9beddf | 384 | copy_reloc(Symbol_table* symtab, Layout* layout, |
6fa2a40b | 385 | Sized_relobj_file<size, big_endian>* object, |
12c0daef ILT |
386 | unsigned int shndx, Output_section* output_section, |
387 | Symbol* sym, const elfcpp::Rela<size, big_endian>& reloc) | |
388 | { | |
389 | this->copy_relocs_.copy_reloc(symtab, layout, | |
390 | symtab->get_sized_symbol<size>(sym), | |
391 | object, shndx, output_section, | |
392 | reloc, this->rela_dyn_section(layout)); | |
393 | } | |
f5314dd5 DM |
394 | |
395 | // Information about this specific target which we pass to the | |
396 | // general Target structure. | |
397 | static Target::Target_info sparc_info; | |
398 | ||
399 | // The types of GOT entries needed for this platform. | |
0e70b911 CC |
400 | // These values are exposed to the ABI in an incremental link. |
401 | // Do not renumber existing values without changing the version | |
402 | // number of the .gnu_incremental_inputs section. | |
f5314dd5 DM |
403 | enum Got_type |
404 | { | |
405 | GOT_TYPE_STANDARD = 0, // GOT entry for a regular symbol | |
406 | GOT_TYPE_TLS_OFFSET = 1, // GOT entry for TLS offset | |
407 | GOT_TYPE_TLS_PAIR = 2, // GOT entry for TLS module/offset pair | |
408 | }; | |
409 | ||
410 | // The GOT section. | |
411 | Output_data_got<size, big_endian>* got_; | |
412 | // The PLT section. | |
413 | Output_data_plt_sparc<size, big_endian>* plt_; | |
414 | // The dynamic reloc section. | |
415 | Reloc_section* rela_dyn_; | |
8c2bf391 DM |
416 | // The section to use for IFUNC relocs. |
417 | Reloc_section* rela_ifunc_; | |
f5314dd5 | 418 | // Relocs saved to avoid a COPY reloc. |
12c0daef | 419 | Copy_relocs<elfcpp::SHT_RELA, size, big_endian> copy_relocs_; |
f5314dd5 DM |
420 | // Space for variables copied with a COPY reloc. |
421 | Output_data_space* dynbss_; | |
422 | // Offset of the GOT entry for the TLS module index; | |
423 | unsigned int got_mod_index_offset_; | |
424 | // Cached pointer to __tls_get_addr symbol | |
425 | Symbol* tls_get_addr_sym_; | |
426 | }; | |
427 | ||
428 | template<> | |
429 | Target::Target_info Target_sparc<32, true>::sparc_info = | |
430 | { | |
431 | 32, // size | |
432 | true, // is_big_endian | |
433 | elfcpp::EM_SPARC, // machine_code | |
434 | false, // has_make_symbol | |
435 | false, // has_resolve | |
436 | false, // has_code_fill | |
437 | true, // is_default_stack_executable | |
b3ce541e | 438 | false, // can_icf_inline_merge_sections |
f5314dd5 DM |
439 | '\0', // wrap_char |
440 | "/usr/lib/ld.so.1", // dynamic_linker | |
441 | 0x00010000, // default_text_segment_address | |
442 | 64 * 1024, // abi_pagesize (overridable by -z max-page-size) | |
8a5e3e08 ILT |
443 | 8 * 1024, // common_pagesize (overridable by -z common-page-size) |
444 | elfcpp::SHN_UNDEF, // small_common_shndx | |
445 | elfcpp::SHN_UNDEF, // large_common_shndx | |
446 | 0, // small_common_section_flags | |
05a352e6 DK |
447 | 0, // large_common_section_flags |
448 | NULL, // attributes_section | |
449 | NULL // attributes_vendor | |
f5314dd5 DM |
450 | }; |
451 | ||
452 | template<> | |
453 | Target::Target_info Target_sparc<64, true>::sparc_info = | |
454 | { | |
455 | 64, // size | |
456 | true, // is_big_endian | |
457 | elfcpp::EM_SPARCV9, // machine_code | |
458 | false, // has_make_symbol | |
459 | false, // has_resolve | |
460 | false, // has_code_fill | |
461 | true, // is_default_stack_executable | |
b3ce541e | 462 | false, // can_icf_inline_merge_sections |
f5314dd5 DM |
463 | '\0', // wrap_char |
464 | "/usr/lib/sparcv9/ld.so.1", // dynamic_linker | |
465 | 0x100000, // default_text_segment_address | |
466 | 64 * 1024, // abi_pagesize (overridable by -z max-page-size) | |
8a5e3e08 ILT |
467 | 8 * 1024, // common_pagesize (overridable by -z common-page-size) |
468 | elfcpp::SHN_UNDEF, // small_common_shndx | |
469 | elfcpp::SHN_UNDEF, // large_common_shndx | |
470 | 0, // small_common_section_flags | |
05a352e6 DK |
471 | 0, // large_common_section_flags |
472 | NULL, // attributes_section | |
473 | NULL // attributes_vendor | |
f5314dd5 DM |
474 | }; |
475 | ||
476 | // We have to take care here, even when operating in little-endian | |
477 | // mode, sparc instructions are still big endian. | |
478 | template<int size, bool big_endian> | |
479 | class Sparc_relocate_functions | |
480 | { | |
481 | private: | |
482 | // Do a simple relocation with the addend in the relocation. | |
483 | template<int valsize> | |
484 | static inline void | |
485 | rela(unsigned char* view, | |
486 | unsigned int right_shift, | |
487 | typename elfcpp::Elf_types<valsize>::Elf_Addr dst_mask, | |
2ea97941 | 488 | typename elfcpp::Swap<size, big_endian>::Valtype value, |
f5314dd5 DM |
489 | typename elfcpp::Swap<size, big_endian>::Valtype addend) |
490 | { | |
491 | typedef typename elfcpp::Swap<valsize, big_endian>::Valtype Valtype; | |
492 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
493 | Valtype val = elfcpp::Swap<valsize, big_endian>::readval(wv); | |
2ea97941 | 494 | Valtype reloc = ((value + addend) >> right_shift); |
f5314dd5 DM |
495 | |
496 | val &= ~dst_mask; | |
497 | reloc &= dst_mask; | |
498 | ||
499 | elfcpp::Swap<valsize, big_endian>::writeval(wv, val | reloc); | |
500 | } | |
501 | ||
502 | // Do a simple relocation using a symbol value with the addend in | |
503 | // the relocation. | |
504 | template<int valsize> | |
505 | static inline void | |
506 | rela(unsigned char* view, | |
507 | unsigned int right_shift, | |
508 | typename elfcpp::Elf_types<valsize>::Elf_Addr dst_mask, | |
6fa2a40b | 509 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
510 | const Symbol_value<size>* psymval, |
511 | typename elfcpp::Swap<valsize, big_endian>::Valtype addend) | |
512 | { | |
513 | typedef typename elfcpp::Swap<valsize, big_endian>::Valtype Valtype; | |
514 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
515 | Valtype val = elfcpp::Swap<valsize, big_endian>::readval(wv); | |
516 | Valtype reloc = (psymval->value(object, addend) >> right_shift); | |
517 | ||
518 | val &= ~dst_mask; | |
519 | reloc &= dst_mask; | |
520 | ||
521 | elfcpp::Swap<valsize, big_endian>::writeval(wv, val | reloc); | |
522 | } | |
523 | ||
524 | // Do a simple relocation using a symbol value with the addend in | |
525 | // the relocation, unaligned. | |
526 | template<int valsize> | |
527 | static inline void | |
528 | rela_ua(unsigned char* view, | |
529 | unsigned int right_shift, elfcpp::Elf_Xword dst_mask, | |
6fa2a40b | 530 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
531 | const Symbol_value<size>* psymval, |
532 | typename elfcpp::Swap<size, big_endian>::Valtype addend) | |
533 | { | |
534 | typedef typename elfcpp::Swap_unaligned<valsize, | |
535 | big_endian>::Valtype Valtype; | |
536 | unsigned char* wv = view; | |
537 | Valtype val = elfcpp::Swap_unaligned<valsize, big_endian>::readval(wv); | |
538 | Valtype reloc = (psymval->value(object, addend) >> right_shift); | |
539 | ||
540 | val &= ~dst_mask; | |
541 | reloc &= dst_mask; | |
542 | ||
543 | elfcpp::Swap_unaligned<valsize, big_endian>::writeval(wv, val | reloc); | |
544 | } | |
545 | ||
546 | // Do a simple PC relative relocation with a Symbol_value with the | |
547 | // addend in the relocation. | |
548 | template<int valsize> | |
549 | static inline void | |
550 | pcrela(unsigned char* view, | |
551 | unsigned int right_shift, | |
552 | typename elfcpp::Elf_types<valsize>::Elf_Addr dst_mask, | |
6fa2a40b | 553 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
554 | const Symbol_value<size>* psymval, |
555 | typename elfcpp::Swap<size, big_endian>::Valtype addend, | |
556 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
557 | { | |
558 | typedef typename elfcpp::Swap<valsize, big_endian>::Valtype Valtype; | |
559 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
560 | Valtype val = elfcpp::Swap<valsize, big_endian>::readval(wv); | |
561 | Valtype reloc = ((psymval->value(object, addend) - address) | |
562 | >> right_shift); | |
563 | ||
564 | val &= ~dst_mask; | |
565 | reloc &= dst_mask; | |
566 | ||
567 | elfcpp::Swap<valsize, big_endian>::writeval(wv, val | reloc); | |
568 | } | |
569 | ||
570 | template<int valsize> | |
571 | static inline void | |
572 | pcrela_unaligned(unsigned char* view, | |
6fa2a40b | 573 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
574 | const Symbol_value<size>* psymval, |
575 | typename elfcpp::Swap<size, big_endian>::Valtype addend, | |
576 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
577 | { | |
578 | typedef typename elfcpp::Swap_unaligned<valsize, | |
579 | big_endian>::Valtype Valtype; | |
580 | unsigned char* wv = view; | |
581 | Valtype reloc = (psymval->value(object, addend) - address); | |
582 | ||
583 | elfcpp::Swap_unaligned<valsize, big_endian>::writeval(wv, reloc); | |
584 | } | |
585 | ||
586 | typedef Sparc_relocate_functions<size, big_endian> This; | |
587 | typedef Sparc_relocate_functions<size, true> This_insn; | |
588 | ||
589 | public: | |
590 | // R_SPARC_WDISP30: (Symbol + Addend - Address) >> 2 | |
591 | static inline void | |
592 | wdisp30(unsigned char* view, | |
6fa2a40b | 593 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
594 | const Symbol_value<size>* psymval, |
595 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
596 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
597 | { | |
598 | This_insn::template pcrela<32>(view, 2, 0x3fffffff, object, | |
599 | psymval, addend, address); | |
600 | } | |
601 | ||
602 | // R_SPARC_WDISP22: (Symbol + Addend - Address) >> 2 | |
603 | static inline void | |
604 | wdisp22(unsigned char* view, | |
6fa2a40b | 605 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
606 | const Symbol_value<size>* psymval, |
607 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
608 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
609 | { | |
610 | This_insn::template pcrela<32>(view, 2, 0x003fffff, object, | |
611 | psymval, addend, address); | |
612 | } | |
613 | ||
614 | // R_SPARC_WDISP19: (Symbol + Addend - Address) >> 2 | |
615 | static inline void | |
616 | wdisp19(unsigned char* view, | |
6fa2a40b | 617 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
618 | const Symbol_value<size>* psymval, |
619 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
620 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
621 | { | |
622 | This_insn::template pcrela<32>(view, 2, 0x0007ffff, object, | |
623 | psymval, addend, address); | |
624 | } | |
625 | ||
626 | // R_SPARC_WDISP16: (Symbol + Addend - Address) >> 2 | |
627 | static inline void | |
628 | wdisp16(unsigned char* view, | |
6fa2a40b | 629 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
630 | const Symbol_value<size>* psymval, |
631 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
632 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
633 | { | |
634 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
635 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
636 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
637 | Valtype reloc = ((psymval->value(object, addend) - address) | |
638 | >> 2); | |
639 | ||
640 | // The relocation value is split between the low 14 bits, | |
641 | // and bits 20-21. | |
642 | val &= ~((0x3 << 20) | 0x3fff); | |
643 | reloc = (((reloc & 0xc000) << (20 - 14)) | |
644 | | (reloc & 0x3ffff)); | |
645 | ||
646 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
647 | } | |
648 | ||
2615994e DM |
649 | // R_SPARC_WDISP10: (Symbol + Addend - Address) >> 2 |
650 | static inline void | |
651 | wdisp10(unsigned char* view, | |
652 | const Sized_relobj_file<size, big_endian>* object, | |
653 | const Symbol_value<size>* psymval, | |
654 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
655 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
656 | { | |
657 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
658 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
659 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
660 | Valtype reloc = ((psymval->value(object, addend) - address) | |
661 | >> 2); | |
662 | ||
663 | // The relocation value is split between the low bits 5-12, | |
664 | // and high bits 19-20. | |
665 | val &= ~((0x3 << 19) | (0xff << 5)); | |
666 | reloc = (((reloc & 0x300) << (19 - 8)) | |
667 | | ((reloc & 0xff) << (5 - 0))); | |
668 | ||
669 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
670 | } | |
671 | ||
f5314dd5 DM |
672 | // R_SPARC_PC22: (Symbol + Addend - Address) >> 10 |
673 | static inline void | |
674 | pc22(unsigned char* view, | |
6fa2a40b | 675 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
676 | const Symbol_value<size>* psymval, |
677 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
678 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
679 | { | |
680 | This_insn::template pcrela<32>(view, 10, 0x003fffff, object, | |
681 | psymval, addend, address); | |
682 | } | |
683 | ||
684 | // R_SPARC_PC10: (Symbol + Addend - Address) & 0x3ff | |
685 | static inline void | |
686 | pc10(unsigned char* view, | |
6fa2a40b | 687 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
688 | const Symbol_value<size>* psymval, |
689 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
690 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
691 | { | |
692 | This_insn::template pcrela<32>(view, 0, 0x000003ff, object, | |
693 | psymval, addend, address); | |
694 | } | |
695 | ||
696 | // R_SPARC_HI22: (Symbol + Addend) >> 10 | |
697 | static inline void | |
698 | hi22(unsigned char* view, | |
2ea97941 | 699 | typename elfcpp::Elf_types<size>::Elf_Addr value, |
f5314dd5 DM |
700 | typename elfcpp::Elf_types<size>::Elf_Addr addend) |
701 | { | |
2ea97941 | 702 | This_insn::template rela<32>(view, 10, 0x003fffff, value, addend); |
f5314dd5 DM |
703 | } |
704 | ||
705 | // R_SPARC_HI22: (Symbol + Addend) >> 10 | |
706 | static inline void | |
707 | hi22(unsigned char* view, | |
6fa2a40b | 708 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
709 | const Symbol_value<size>* psymval, |
710 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
711 | { | |
712 | This_insn::template rela<32>(view, 10, 0x003fffff, object, psymval, addend); | |
713 | } | |
714 | ||
715 | // R_SPARC_PCPLT22: (Symbol + Addend - Address) >> 10 | |
716 | static inline void | |
717 | pcplt22(unsigned char* view, | |
6fa2a40b | 718 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
719 | const Symbol_value<size>* psymval, |
720 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
721 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
722 | { | |
723 | This_insn::template pcrela<32>(view, 10, 0x003fffff, object, | |
724 | psymval, addend, address); | |
725 | } | |
726 | ||
727 | // R_SPARC_LO10: (Symbol + Addend) & 0x3ff | |
728 | static inline void | |
729 | lo10(unsigned char* view, | |
2ea97941 | 730 | typename elfcpp::Elf_types<size>::Elf_Addr value, |
f5314dd5 DM |
731 | typename elfcpp::Elf_types<size>::Elf_Addr addend) |
732 | { | |
2ea97941 | 733 | This_insn::template rela<32>(view, 0, 0x000003ff, value, addend); |
f5314dd5 DM |
734 | } |
735 | ||
736 | // R_SPARC_LO10: (Symbol + Addend) & 0x3ff | |
737 | static inline void | |
738 | lo10(unsigned char* view, | |
6fa2a40b | 739 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
740 | const Symbol_value<size>* psymval, |
741 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
742 | { | |
743 | This_insn::template rela<32>(view, 0, 0x000003ff, object, psymval, addend); | |
744 | } | |
745 | ||
746 | // R_SPARC_LO10: (Symbol + Addend) & 0x3ff | |
747 | static inline void | |
748 | lo10(unsigned char* view, | |
6fa2a40b | 749 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
750 | const Symbol_value<size>* psymval, |
751 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
752 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
753 | { | |
754 | This_insn::template pcrela<32>(view, 0, 0x000003ff, object, | |
755 | psymval, addend, address); | |
756 | } | |
757 | ||
758 | // R_SPARC_OLO10: ((Symbol + Addend) & 0x3ff) + Addend2 | |
759 | static inline void | |
760 | olo10(unsigned char* view, | |
6fa2a40b | 761 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
762 | const Symbol_value<size>* psymval, |
763 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
764 | typename elfcpp::Elf_types<size>::Elf_Addr addend2) | |
765 | { | |
766 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
767 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
768 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
769 | Valtype reloc = psymval->value(object, addend); | |
770 | ||
771 | val &= ~0x1fff; | |
772 | reloc &= 0x3ff; | |
773 | reloc += addend2; | |
774 | reloc &= 0x1fff; | |
775 | ||
776 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
777 | } | |
778 | ||
779 | // R_SPARC_22: (Symbol + Addend) | |
780 | static inline void | |
781 | rela32_22(unsigned char* view, | |
6fa2a40b | 782 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
783 | const Symbol_value<size>* psymval, |
784 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
785 | { | |
786 | This_insn::template rela<32>(view, 0, 0x003fffff, object, psymval, addend); | |
787 | } | |
788 | ||
789 | // R_SPARC_13: (Symbol + Addend) | |
790 | static inline void | |
791 | rela32_13(unsigned char* view, | |
2ea97941 | 792 | typename elfcpp::Elf_types<size>::Elf_Addr value, |
f5314dd5 DM |
793 | typename elfcpp::Elf_types<size>::Elf_Addr addend) |
794 | { | |
2ea97941 | 795 | This_insn::template rela<32>(view, 0, 0x00001fff, value, addend); |
f5314dd5 DM |
796 | } |
797 | ||
798 | // R_SPARC_13: (Symbol + Addend) | |
799 | static inline void | |
800 | rela32_13(unsigned char* view, | |
6fa2a40b | 801 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
802 | const Symbol_value<size>* psymval, |
803 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
804 | { | |
805 | This_insn::template rela<32>(view, 0, 0x00001fff, object, psymval, addend); | |
806 | } | |
807 | ||
808 | // R_SPARC_UA16: (Symbol + Addend) | |
809 | static inline void | |
810 | ua16(unsigned char* view, | |
6fa2a40b | 811 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
812 | const Symbol_value<size>* psymval, |
813 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
814 | { | |
815 | This::template rela_ua<16>(view, 0, 0xffff, object, psymval, addend); | |
816 | } | |
817 | ||
818 | // R_SPARC_UA32: (Symbol + Addend) | |
819 | static inline void | |
820 | ua32(unsigned char* view, | |
6fa2a40b | 821 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
822 | const Symbol_value<size>* psymval, |
823 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
824 | { | |
825 | This::template rela_ua<32>(view, 0, 0xffffffff, object, psymval, addend); | |
826 | } | |
827 | ||
828 | // R_SPARC_UA64: (Symbol + Addend) | |
829 | static inline void | |
830 | ua64(unsigned char* view, | |
6fa2a40b | 831 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
832 | const Symbol_value<size>* psymval, |
833 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
834 | { | |
835 | This::template rela_ua<64>(view, 0, ~(elfcpp::Elf_Xword) 0, | |
836 | object, psymval, addend); | |
837 | } | |
838 | ||
839 | // R_SPARC_DISP8: (Symbol + Addend - Address) | |
840 | static inline void | |
841 | disp8(unsigned char* view, | |
6fa2a40b | 842 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
843 | const Symbol_value<size>* psymval, |
844 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
845 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
846 | { | |
847 | This::template pcrela_unaligned<8>(view, object, psymval, | |
848 | addend, address); | |
849 | } | |
850 | ||
851 | // R_SPARC_DISP16: (Symbol + Addend - Address) | |
852 | static inline void | |
853 | disp16(unsigned char* view, | |
6fa2a40b | 854 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
855 | const Symbol_value<size>* psymval, |
856 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
857 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
858 | { | |
859 | This::template pcrela_unaligned<16>(view, object, psymval, | |
860 | addend, address); | |
861 | } | |
862 | ||
863 | // R_SPARC_DISP32: (Symbol + Addend - Address) | |
864 | static inline void | |
865 | disp32(unsigned char* view, | |
6fa2a40b | 866 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
867 | const Symbol_value<size>* psymval, |
868 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
869 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
870 | { | |
871 | This::template pcrela_unaligned<32>(view, object, psymval, | |
872 | addend, address); | |
873 | } | |
874 | ||
875 | // R_SPARC_DISP64: (Symbol + Addend - Address) | |
876 | static inline void | |
877 | disp64(unsigned char* view, | |
6fa2a40b | 878 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
879 | const Symbol_value<size>* psymval, |
880 | elfcpp::Elf_Xword addend, | |
881 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
882 | { | |
883 | This::template pcrela_unaligned<64>(view, object, psymval, | |
884 | addend, address); | |
885 | } | |
886 | ||
2615994e DM |
887 | // R_SPARC_H34: (Symbol + Addend) >> 12 |
888 | static inline void | |
889 | h34(unsigned char* view, | |
890 | const Sized_relobj_file<size, big_endian>* object, | |
891 | const Symbol_value<size>* psymval, | |
892 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
893 | { | |
894 | This_insn::template rela<32>(view, 12, 0x003fffff, object, psymval, addend); | |
895 | } | |
896 | ||
f5314dd5 DM |
897 | // R_SPARC_H44: (Symbol + Addend) >> 22 |
898 | static inline void | |
899 | h44(unsigned char* view, | |
6fa2a40b | 900 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
901 | const Symbol_value<size>* psymval, |
902 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
903 | { | |
904 | This_insn::template rela<32>(view, 22, 0x003fffff, object, psymval, addend); | |
905 | } | |
906 | ||
907 | // R_SPARC_M44: ((Symbol + Addend) >> 12) & 0x3ff | |
908 | static inline void | |
909 | m44(unsigned char* view, | |
6fa2a40b | 910 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
911 | const Symbol_value<size>* psymval, |
912 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
913 | { | |
914 | This_insn::template rela<32>(view, 12, 0x000003ff, object, psymval, addend); | |
915 | } | |
916 | ||
917 | // R_SPARC_L44: (Symbol + Addend) & 0xfff | |
918 | static inline void | |
919 | l44(unsigned char* view, | |
6fa2a40b | 920 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
921 | const Symbol_value<size>* psymval, |
922 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
923 | { | |
924 | This_insn::template rela<32>(view, 0, 0x00000fff, object, psymval, addend); | |
925 | } | |
926 | ||
927 | // R_SPARC_HH22: (Symbol + Addend) >> 42 | |
928 | static inline void | |
929 | hh22(unsigned char* view, | |
6fa2a40b | 930 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
931 | const Symbol_value<size>* psymval, |
932 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
933 | { | |
934 | This_insn::template rela<32>(view, 42, 0x003fffff, object, psymval, addend); | |
935 | } | |
936 | ||
937 | // R_SPARC_PC_HH22: (Symbol + Addend - Address) >> 42 | |
938 | static inline void | |
939 | pc_hh22(unsigned char* view, | |
6fa2a40b | 940 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
941 | const Symbol_value<size>* psymval, |
942 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
943 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
944 | { | |
945 | This_insn::template pcrela<32>(view, 42, 0x003fffff, object, | |
946 | psymval, addend, address); | |
947 | } | |
948 | ||
949 | // R_SPARC_HM10: ((Symbol + Addend) >> 32) & 0x3ff | |
950 | static inline void | |
951 | hm10(unsigned char* view, | |
6fa2a40b | 952 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
953 | const Symbol_value<size>* psymval, |
954 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
955 | { | |
956 | This_insn::template rela<32>(view, 32, 0x000003ff, object, psymval, addend); | |
957 | } | |
958 | ||
959 | // R_SPARC_PC_HM10: ((Symbol + Addend - Address) >> 32) & 0x3ff | |
960 | static inline void | |
961 | pc_hm10(unsigned char* view, | |
6fa2a40b | 962 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
963 | const Symbol_value<size>* psymval, |
964 | typename elfcpp::Elf_types<size>::Elf_Addr addend, | |
965 | typename elfcpp::Elf_types<size>::Elf_Addr address) | |
966 | { | |
967 | This_insn::template pcrela<32>(view, 32, 0x000003ff, object, | |
968 | psymval, addend, address); | |
969 | } | |
970 | ||
971 | // R_SPARC_11: (Symbol + Addend) | |
972 | static inline void | |
973 | rela32_11(unsigned char* view, | |
6fa2a40b | 974 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
975 | const Symbol_value<size>* psymval, |
976 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
977 | { | |
978 | This_insn::template rela<32>(view, 0, 0x000007ff, object, psymval, addend); | |
979 | } | |
980 | ||
981 | // R_SPARC_10: (Symbol + Addend) | |
982 | static inline void | |
983 | rela32_10(unsigned char* view, | |
6fa2a40b | 984 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
985 | const Symbol_value<size>* psymval, |
986 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
987 | { | |
988 | This_insn::template rela<32>(view, 0, 0x000003ff, object, psymval, addend); | |
989 | } | |
990 | ||
991 | // R_SPARC_7: (Symbol + Addend) | |
992 | static inline void | |
993 | rela32_7(unsigned char* view, | |
6fa2a40b | 994 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
995 | const Symbol_value<size>* psymval, |
996 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
997 | { | |
998 | This_insn::template rela<32>(view, 0, 0x0000007f, object, psymval, addend); | |
999 | } | |
1000 | ||
1001 | // R_SPARC_6: (Symbol + Addend) | |
1002 | static inline void | |
1003 | rela32_6(unsigned char* view, | |
6fa2a40b | 1004 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
1005 | const Symbol_value<size>* psymval, |
1006 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
1007 | { | |
1008 | This_insn::template rela<32>(view, 0, 0x0000003f, object, psymval, addend); | |
1009 | } | |
1010 | ||
1011 | // R_SPARC_5: (Symbol + Addend) | |
1012 | static inline void | |
1013 | rela32_5(unsigned char* view, | |
6fa2a40b | 1014 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
1015 | const Symbol_value<size>* psymval, |
1016 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
1017 | { | |
1018 | This_insn::template rela<32>(view, 0, 0x0000001f, object, psymval, addend); | |
1019 | } | |
1020 | ||
1021 | // R_SPARC_TLS_LDO_HIX22: @dtpoff(Symbol + Addend) >> 10 | |
1022 | static inline void | |
1023 | ldo_hix22(unsigned char* view, | |
2ea97941 | 1024 | typename elfcpp::Elf_types<size>::Elf_Addr value, |
f5314dd5 DM |
1025 | typename elfcpp::Elf_types<size>::Elf_Addr addend) |
1026 | { | |
2ea97941 | 1027 | This_insn::hi22(view, value, addend); |
f5314dd5 DM |
1028 | } |
1029 | ||
1030 | // R_SPARC_TLS_LDO_LOX10: @dtpoff(Symbol + Addend) & 0x3ff | |
1031 | static inline void | |
1032 | ldo_lox10(unsigned char* view, | |
2ea97941 | 1033 | typename elfcpp::Elf_types<size>::Elf_Addr value, |
f5314dd5 DM |
1034 | typename elfcpp::Elf_types<size>::Elf_Addr addend) |
1035 | { | |
1036 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
1037 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
1038 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
2ea97941 | 1039 | Valtype reloc = (value + addend); |
f5314dd5 DM |
1040 | |
1041 | val &= ~0x1fff; | |
1042 | reloc &= 0x3ff; | |
1043 | ||
1044 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
1045 | } | |
1046 | ||
1047 | // R_SPARC_TLS_LE_HIX22: (@tpoff(Symbol + Addend) ^ 0xffffffffffffffff) >> 10 | |
1048 | static inline void | |
1049 | hix22(unsigned char* view, | |
2ea97941 | 1050 | typename elfcpp::Elf_types<size>::Elf_Addr value, |
f5314dd5 DM |
1051 | typename elfcpp::Elf_types<size>::Elf_Addr addend) |
1052 | { | |
1053 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
1054 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
1055 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
2ea97941 | 1056 | Valtype reloc = (value + addend); |
f5314dd5 DM |
1057 | |
1058 | val &= ~0x3fffff; | |
1059 | ||
1060 | reloc ^= ~(Valtype)0; | |
1061 | reloc >>= 10; | |
1062 | ||
1063 | reloc &= 0x3fffff; | |
1064 | ||
1065 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
1066 | } | |
1067 | ||
1068 | // R_SPARC_HIX22: ((Symbol + Addend) ^ 0xffffffffffffffff) >> 10 | |
1069 | static inline void | |
1070 | hix22(unsigned char* view, | |
6fa2a40b | 1071 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
1072 | const Symbol_value<size>* psymval, |
1073 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
1074 | { | |
1075 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
1076 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
1077 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
1078 | Valtype reloc = psymval->value(object, addend); | |
1079 | ||
1080 | val &= ~0x3fffff; | |
1081 | ||
1082 | reloc ^= ~(Valtype)0; | |
1083 | reloc >>= 10; | |
1084 | ||
1085 | reloc &= 0x3fffff; | |
1086 | ||
1087 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
1088 | } | |
1089 | ||
1090 | ||
1091 | // R_SPARC_TLS_LE_LOX10: (@tpoff(Symbol + Addend) & 0x3ff) | 0x1c00 | |
1092 | static inline void | |
1093 | lox10(unsigned char* view, | |
2ea97941 | 1094 | typename elfcpp::Elf_types<size>::Elf_Addr value, |
f5314dd5 DM |
1095 | typename elfcpp::Elf_types<size>::Elf_Addr addend) |
1096 | { | |
1097 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
1098 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
1099 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
2ea97941 | 1100 | Valtype reloc = (value + addend); |
f5314dd5 DM |
1101 | |
1102 | val &= ~0x1fff; | |
1103 | reloc &= 0x3ff; | |
1104 | reloc |= 0x1c00; | |
1105 | ||
1106 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
1107 | } | |
1108 | ||
1109 | // R_SPARC_LOX10: ((Symbol + Addend) & 0x3ff) | 0x1c00 | |
1110 | static inline void | |
1111 | lox10(unsigned char* view, | |
6fa2a40b | 1112 | const Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
1113 | const Symbol_value<size>* psymval, |
1114 | typename elfcpp::Elf_types<size>::Elf_Addr addend) | |
1115 | { | |
1116 | typedef typename elfcpp::Swap<32, true>::Valtype Valtype; | |
1117 | Valtype* wv = reinterpret_cast<Valtype*>(view); | |
1118 | Valtype val = elfcpp::Swap<32, true>::readval(wv); | |
1119 | Valtype reloc = psymval->value(object, addend); | |
1120 | ||
1121 | val &= ~0x1fff; | |
1122 | reloc &= 0x3ff; | |
1123 | reloc |= 0x1c00; | |
1124 | ||
1125 | elfcpp::Swap<32, true>::writeval(wv, val | reloc); | |
1126 | } | |
1127 | }; | |
1128 | ||
1129 | // Get the GOT section, creating it if necessary. | |
1130 | ||
1131 | template<int size, bool big_endian> | |
1132 | Output_data_got<size, big_endian>* | |
1133 | Target_sparc<size, big_endian>::got_section(Symbol_table* symtab, | |
1134 | Layout* layout) | |
1135 | { | |
1136 | if (this->got_ == NULL) | |
1137 | { | |
1138 | gold_assert(symtab != NULL && layout != NULL); | |
1139 | ||
1140 | this->got_ = new Output_data_got<size, big_endian>(); | |
1141 | ||
82742395 ILT |
1142 | layout->add_output_section_data(".got", elfcpp::SHT_PROGBITS, |
1143 | (elfcpp::SHF_ALLOC | |
1144 | | elfcpp::SHF_WRITE), | |
22f0da72 | 1145 | this->got_, ORDER_RELRO, true); |
f5314dd5 DM |
1146 | |
1147 | // Define _GLOBAL_OFFSET_TABLE_ at the start of the .got section. | |
1148 | symtab->define_in_output_data("_GLOBAL_OFFSET_TABLE_", NULL, | |
99fff23b | 1149 | Symbol_table::PREDEFINED, |
f5314dd5 DM |
1150 | this->got_, |
1151 | 0, 0, elfcpp::STT_OBJECT, | |
1152 | elfcpp::STB_LOCAL, | |
1153 | elfcpp::STV_HIDDEN, 0, | |
1154 | false, false); | |
1155 | } | |
1156 | ||
1157 | return this->got_; | |
1158 | } | |
1159 | ||
1160 | // Get the dynamic reloc section, creating it if necessary. | |
1161 | ||
1162 | template<int size, bool big_endian> | |
1163 | typename Target_sparc<size, big_endian>::Reloc_section* | |
1164 | Target_sparc<size, big_endian>::rela_dyn_section(Layout* layout) | |
1165 | { | |
1166 | if (this->rela_dyn_ == NULL) | |
1167 | { | |
1168 | gold_assert(layout != NULL); | |
d98bc257 | 1169 | this->rela_dyn_ = new Reloc_section(parameters->options().combreloc()); |
f5314dd5 | 1170 | layout->add_output_section_data(".rela.dyn", elfcpp::SHT_RELA, |
22f0da72 ILT |
1171 | elfcpp::SHF_ALLOC, this->rela_dyn_, |
1172 | ORDER_DYNAMIC_RELOCS, false); | |
f5314dd5 DM |
1173 | } |
1174 | return this->rela_dyn_; | |
1175 | } | |
1176 | ||
8c2bf391 DM |
1177 | // Get the section to use for IFUNC relocs, creating it if |
1178 | // necessary. These go in .rela.dyn, but only after all other dynamic | |
1179 | // relocations. They need to follow the other dynamic relocations so | |
1180 | // that they can refer to global variables initialized by those | |
1181 | // relocs. | |
1182 | ||
1183 | template<int size, bool big_endian> | |
1184 | typename Target_sparc<size, big_endian>::Reloc_section* | |
1185 | Target_sparc<size, big_endian>::rela_ifunc_section(Layout* layout) | |
1186 | { | |
1187 | if (this->rela_ifunc_ == NULL) | |
1188 | { | |
1189 | // Make sure we have already created the dynamic reloc section. | |
1190 | this->rela_dyn_section(layout); | |
1191 | this->rela_ifunc_ = new Reloc_section(false); | |
1192 | layout->add_output_section_data(".rela.dyn", elfcpp::SHT_RELA, | |
1193 | elfcpp::SHF_ALLOC, this->rela_ifunc_, | |
1194 | ORDER_DYNAMIC_RELOCS, false); | |
1195 | gold_assert(this->rela_dyn_->output_section() | |
1196 | == this->rela_ifunc_->output_section()); | |
1197 | } | |
1198 | return this->rela_ifunc_; | |
1199 | } | |
1200 | ||
f5314dd5 DM |
1201 | // A class to handle the PLT data. |
1202 | ||
1203 | template<int size, bool big_endian> | |
1204 | class Output_data_plt_sparc : public Output_section_data | |
1205 | { | |
1206 | public: | |
1207 | typedef Output_data_reloc<elfcpp::SHT_RELA, true, | |
1208 | size, big_endian> Reloc_section; | |
1209 | ||
1210 | Output_data_plt_sparc(Layout*); | |
1211 | ||
1212 | // Add an entry to the PLT. | |
8c2bf391 DM |
1213 | void add_entry(Symbol_table* symtab, Layout* layout, Symbol* gsym); |
1214 | ||
1215 | // Add an entry to the PLT for a local STT_GNU_IFUNC symbol. | |
1216 | unsigned int | |
1217 | add_local_ifunc_entry(Symbol_table*, Layout*, | |
1218 | Sized_relobj_file<size, big_endian>* relobj, | |
1219 | unsigned int local_sym_index); | |
f5314dd5 DM |
1220 | |
1221 | // Return the .rela.plt section data. | |
1222 | const Reloc_section* rel_plt() const | |
1223 | { | |
1224 | return this->rel_; | |
1225 | } | |
1226 | ||
8c2bf391 DM |
1227 | // Return where the IFUNC relocations should go. |
1228 | Reloc_section* | |
1229 | rela_ifunc(Symbol_table*, Layout*); | |
1230 | ||
1231 | void | |
1232 | emit_pending_ifunc_relocs(); | |
1233 | ||
1234 | // Return whether we created a section for IFUNC relocations. | |
1235 | bool | |
1236 | has_ifunc_section() const | |
1237 | { return this->ifunc_rel_ != NULL; } | |
1238 | ||
0e70b911 CC |
1239 | // Return the number of PLT entries. |
1240 | unsigned int | |
1241 | entry_count() const | |
8c2bf391 | 1242 | { return this->count_ + this->ifunc_count_; } |
0e70b911 CC |
1243 | |
1244 | // Return the offset of the first non-reserved PLT entry. | |
1245 | static unsigned int | |
1246 | first_plt_entry_offset() | |
1247 | { return 4 * base_plt_entry_size; } | |
1248 | ||
1249 | // Return the size of a PLT entry. | |
1250 | static unsigned int | |
1251 | get_plt_entry_size() | |
1252 | { return base_plt_entry_size; } | |
1253 | ||
8c2bf391 DM |
1254 | // Return the PLT address to use for a global symbol. |
1255 | uint64_t | |
1256 | address_for_global(const Symbol*); | |
1257 | ||
1258 | // Return the PLT address to use for a local symbol. | |
1259 | uint64_t | |
1260 | address_for_local(const Relobj*, unsigned int symndx); | |
1261 | ||
f5314dd5 DM |
1262 | protected: |
1263 | void do_adjust_output_section(Output_section* os); | |
1264 | ||
7d9e3d98 ILT |
1265 | // Write to a map file. |
1266 | void | |
1267 | do_print_to_mapfile(Mapfile* mapfile) const | |
1268 | { mapfile->print_output_data(this, _("** PLT")); } | |
1269 | ||
f5314dd5 DM |
1270 | private: |
1271 | // The size of an entry in the PLT. | |
1272 | static const int base_plt_entry_size = (size == 32 ? 12 : 32); | |
1273 | ||
1274 | static const unsigned int plt_entries_per_block = 160; | |
1275 | static const unsigned int plt_insn_chunk_size = 24; | |
1276 | static const unsigned int plt_pointer_chunk_size = 8; | |
1277 | static const unsigned int plt_block_size = | |
1278 | (plt_entries_per_block | |
1279 | * (plt_insn_chunk_size + plt_pointer_chunk_size)); | |
1280 | ||
8c2bf391 DM |
1281 | section_offset_type |
1282 | plt_index_to_offset(unsigned int index) | |
f5314dd5 | 1283 | { |
8c2bf391 | 1284 | section_offset_type offset; |
f5314dd5 | 1285 | |
8c2bf391 DM |
1286 | if (size == 32 || index < 32768) |
1287 | offset = index * base_plt_entry_size; | |
f5314dd5 DM |
1288 | else |
1289 | { | |
8c2bf391 | 1290 | unsigned int ext_index = index - 32768; |
f5314dd5 | 1291 | |
8c2bf391 DM |
1292 | offset = (32768 * base_plt_entry_size) |
1293 | + ((ext_index / plt_entries_per_block) | |
1294 | * plt_block_size) | |
1295 | + ((ext_index % plt_entries_per_block) | |
1296 | * plt_insn_chunk_size); | |
f5314dd5 | 1297 | } |
8c2bf391 DM |
1298 | return offset; |
1299 | } | |
1300 | ||
1301 | // Set the final size. | |
1302 | void | |
1303 | set_final_data_size() | |
1304 | { | |
1305 | unsigned int full_count = this->entry_count() + 4; | |
1306 | unsigned int extra = (size == 32 ? 4 : 0); | |
1307 | section_offset_type sz = plt_index_to_offset(full_count) + extra; | |
1308 | ||
1309 | return this->set_data_size(sz); | |
f5314dd5 DM |
1310 | } |
1311 | ||
1312 | // Write out the PLT data. | |
1313 | void | |
1314 | do_write(Output_file*); | |
1315 | ||
8c2bf391 DM |
1316 | struct Global_ifunc |
1317 | { | |
1318 | Reloc_section* rel; | |
1319 | Symbol* gsym; | |
1320 | unsigned int plt_index; | |
1321 | }; | |
1322 | ||
1323 | struct Local_ifunc | |
1324 | { | |
1325 | Reloc_section* rel; | |
1326 | Sized_relobj_file<size, big_endian>* object; | |
1327 | unsigned int local_sym_index; | |
1328 | unsigned int plt_index; | |
1329 | }; | |
1330 | ||
f5314dd5 DM |
1331 | // The reloc section. |
1332 | Reloc_section* rel_; | |
8c2bf391 DM |
1333 | // The IFUNC relocations, if necessary. These must follow the |
1334 | // regular relocations. | |
1335 | Reloc_section* ifunc_rel_; | |
f5314dd5 DM |
1336 | // The number of PLT entries. |
1337 | unsigned int count_; | |
8c2bf391 DM |
1338 | // The number of PLT entries for IFUNC symbols. |
1339 | unsigned int ifunc_count_; | |
1340 | // Global STT_GNU_IFUNC symbols. | |
1341 | std::vector<Global_ifunc> global_ifuncs_; | |
1342 | // Local STT_GNU_IFUNC symbols. | |
1343 | std::vector<Local_ifunc> local_ifuncs_; | |
f5314dd5 DM |
1344 | }; |
1345 | ||
4f2a9edd ILT |
1346 | // Define the constants as required by C++ standard. |
1347 | ||
1348 | template<int size, bool big_endian> | |
1349 | const int Output_data_plt_sparc<size, big_endian>::base_plt_entry_size; | |
1350 | ||
1351 | template<int size, bool big_endian> | |
1352 | const unsigned int | |
1353 | Output_data_plt_sparc<size, big_endian>::plt_entries_per_block; | |
1354 | ||
1355 | template<int size, bool big_endian> | |
1356 | const unsigned int Output_data_plt_sparc<size, big_endian>::plt_insn_chunk_size; | |
1357 | ||
1358 | template<int size, bool big_endian> | |
1359 | const unsigned int | |
1360 | Output_data_plt_sparc<size, big_endian>::plt_pointer_chunk_size; | |
1361 | ||
1362 | template<int size, bool big_endian> | |
1363 | const unsigned int Output_data_plt_sparc<size, big_endian>::plt_block_size; | |
1364 | ||
f5314dd5 DM |
1365 | // Create the PLT section. The ordinary .got section is an argument, |
1366 | // since we need to refer to the start. | |
1367 | ||
1368 | template<int size, bool big_endian> | |
1369 | Output_data_plt_sparc<size, big_endian>::Output_data_plt_sparc(Layout* layout) | |
8c2bf391 DM |
1370 | : Output_section_data(size == 32 ? 4 : 8), ifunc_rel_(NULL), |
1371 | count_(0), ifunc_count_(0), global_ifuncs_(), local_ifuncs_() | |
f5314dd5 | 1372 | { |
d98bc257 | 1373 | this->rel_ = new Reloc_section(false); |
f5314dd5 | 1374 | layout->add_output_section_data(".rela.plt", elfcpp::SHT_RELA, |
22f0da72 ILT |
1375 | elfcpp::SHF_ALLOC, this->rel_, |
1376 | ORDER_DYNAMIC_PLT_RELOCS, false); | |
f5314dd5 DM |
1377 | } |
1378 | ||
1379 | template<int size, bool big_endian> | |
1380 | void | |
1381 | Output_data_plt_sparc<size, big_endian>::do_adjust_output_section(Output_section* os) | |
1382 | { | |
1383 | os->set_entsize(0); | |
1384 | } | |
1385 | ||
1386 | // Add an entry to the PLT. | |
1387 | ||
1388 | template<int size, bool big_endian> | |
1389 | void | |
8c2bf391 DM |
1390 | Output_data_plt_sparc<size, big_endian>::add_entry(Symbol_table* symtab, |
1391 | Layout* layout, | |
1392 | Symbol* gsym) | |
f5314dd5 DM |
1393 | { |
1394 | gold_assert(!gsym->has_plt_offset()); | |
1395 | ||
f5314dd5 | 1396 | section_offset_type plt_offset; |
8c2bf391 | 1397 | unsigned int index; |
f5314dd5 | 1398 | |
8c2bf391 DM |
1399 | if (gsym->type() == elfcpp::STT_GNU_IFUNC |
1400 | && gsym->can_use_relative_reloc(false)) | |
1401 | { | |
1402 | index = this->ifunc_count_; | |
1403 | plt_offset = plt_index_to_offset(index); | |
1404 | gsym->set_plt_offset(plt_offset); | |
1405 | ++this->ifunc_count_; | |
1406 | Reloc_section* rel = this->rela_ifunc(symtab, layout); | |
1407 | ||
1408 | struct Global_ifunc gi; | |
1409 | gi.rel = rel; | |
1410 | gi.gsym = gsym; | |
1411 | gi.plt_index = index; | |
1412 | this->global_ifuncs_.push_back(gi); | |
1413 | } | |
f5314dd5 DM |
1414 | else |
1415 | { | |
8c2bf391 DM |
1416 | plt_offset = plt_index_to_offset(this->count_ + 4); |
1417 | gsym->set_plt_offset(plt_offset); | |
1418 | ++this->count_; | |
1419 | gsym->set_needs_dynsym_entry(); | |
1420 | this->rel_->add_global(gsym, elfcpp::R_SPARC_JMP_SLOT, this, | |
1421 | plt_offset, 0); | |
1422 | } | |
f5314dd5 | 1423 | |
8c2bf391 DM |
1424 | // Note that we don't need to save the symbol. The contents of the |
1425 | // PLT are independent of which symbols are used. The symbols only | |
1426 | // appear in the relocations. | |
1427 | } | |
1428 | ||
1429 | template<int size, bool big_endian> | |
1430 | unsigned int | |
1431 | Output_data_plt_sparc<size, big_endian>::add_local_ifunc_entry( | |
1432 | Symbol_table* symtab, | |
1433 | Layout* layout, | |
1434 | Sized_relobj_file<size, big_endian>* relobj, | |
1435 | unsigned int local_sym_index) | |
1436 | { | |
1437 | unsigned int index = this->ifunc_count_; | |
1438 | section_offset_type plt_offset; | |
1439 | ||
1440 | plt_offset = plt_index_to_offset(index); | |
1441 | ++this->ifunc_count_; | |
1442 | ||
1443 | Reloc_section* rel = this->rela_ifunc(symtab, layout); | |
1444 | ||
1445 | struct Local_ifunc li; | |
1446 | li.rel = rel; | |
1447 | li.object = relobj; | |
1448 | li.local_sym_index = local_sym_index; | |
1449 | li.plt_index = index; | |
1450 | this->local_ifuncs_.push_back(li); | |
1451 | ||
1452 | return plt_offset; | |
1453 | } | |
1454 | ||
1455 | // Emit any pending IFUNC plt relocations. | |
1456 | ||
1457 | template<int size, bool big_endian> | |
1458 | void | |
1459 | Output_data_plt_sparc<size, big_endian>::emit_pending_ifunc_relocs() | |
1460 | { | |
1461 | // Emit any pending IFUNC relocs. | |
1462 | for (typename std::vector<Global_ifunc>::const_iterator p = | |
1463 | this->global_ifuncs_.begin(); | |
1464 | p != this->global_ifuncs_.end(); | |
1465 | ++p) | |
1466 | { | |
1467 | section_offset_type plt_offset; | |
1468 | unsigned int index; | |
1469 | ||
1470 | index = this->count_ + p->plt_index + 4; | |
1471 | plt_offset = this->plt_index_to_offset(index); | |
1472 | p->rel->add_symbolless_global_addend(p->gsym, elfcpp::R_SPARC_JMP_IREL, | |
1473 | this, plt_offset, 0); | |
1474 | } | |
1475 | ||
1476 | for (typename std::vector<Local_ifunc>::const_iterator p = | |
1477 | this->local_ifuncs_.begin(); | |
1478 | p != this->local_ifuncs_.end(); | |
1479 | ++p) | |
1480 | { | |
1481 | section_offset_type plt_offset; | |
1482 | unsigned int index; | |
1483 | ||
1484 | index = this->count_ + p->plt_index + 4; | |
1485 | plt_offset = this->plt_index_to_offset(index); | |
1486 | p->rel->add_symbolless_local_addend(p->object, p->local_sym_index, | |
1487 | elfcpp::R_SPARC_JMP_IREL, | |
1488 | this, plt_offset, 0); | |
f5314dd5 | 1489 | } |
8c2bf391 | 1490 | } |
f5314dd5 | 1491 | |
8c2bf391 DM |
1492 | // Return where the IFUNC relocations should go in the PLT. These |
1493 | // follow the non-IFUNC relocations. | |
f5314dd5 | 1494 | |
8c2bf391 DM |
1495 | template<int size, bool big_endian> |
1496 | typename Output_data_plt_sparc<size, big_endian>::Reloc_section* | |
1497 | Output_data_plt_sparc<size, big_endian>::rela_ifunc( | |
1498 | Symbol_table* symtab, | |
1499 | Layout* layout) | |
1500 | { | |
1501 | if (this->ifunc_rel_ == NULL) | |
1502 | { | |
1503 | this->ifunc_rel_ = new Reloc_section(false); | |
1504 | layout->add_output_section_data(".rela.plt", elfcpp::SHT_RELA, | |
1505 | elfcpp::SHF_ALLOC, this->ifunc_rel_, | |
1506 | ORDER_DYNAMIC_PLT_RELOCS, false); | |
1507 | gold_assert(this->ifunc_rel_->output_section() | |
1508 | == this->rel_->output_section()); | |
1509 | ||
1510 | if (parameters->doing_static_link()) | |
1511 | { | |
1512 | // A statically linked executable will only have a .rel.plt | |
1513 | // section to hold R_SPARC_IRELATIVE and R_SPARC_JMP_IREL | |
1514 | // relocs for STT_GNU_IFUNC symbols. The library will use | |
1515 | // these symbols to locate the IRELATIVE and JMP_IREL relocs | |
1516 | // at program startup time. | |
1517 | symtab->define_in_output_data("__rela_iplt_start", NULL, | |
1518 | Symbol_table::PREDEFINED, | |
1519 | this->ifunc_rel_, 0, 0, | |
1520 | elfcpp::STT_NOTYPE, elfcpp::STB_GLOBAL, | |
1521 | elfcpp::STV_HIDDEN, 0, false, true); | |
1522 | symtab->define_in_output_data("__rela_iplt_end", NULL, | |
1523 | Symbol_table::PREDEFINED, | |
1524 | this->ifunc_rel_, 0, 0, | |
1525 | elfcpp::STT_NOTYPE, elfcpp::STB_GLOBAL, | |
1526 | elfcpp::STV_HIDDEN, 0, true, true); | |
1527 | } | |
1528 | } | |
1529 | return this->ifunc_rel_; | |
1530 | } | |
f5314dd5 | 1531 | |
8c2bf391 | 1532 | // Return the PLT address to use for a global symbol. |
f5314dd5 | 1533 | |
8c2bf391 DM |
1534 | template<int size, bool big_endian> |
1535 | uint64_t | |
1536 | Output_data_plt_sparc<size, big_endian>::address_for_global(const Symbol* gsym) | |
1537 | { | |
1538 | uint64_t offset = 0; | |
1539 | if (gsym->type() == elfcpp::STT_GNU_IFUNC | |
1540 | && gsym->can_use_relative_reloc(false)) | |
1541 | offset = plt_index_to_offset(this->count_ + 4); | |
1542 | return this->address() + offset; | |
1543 | } | |
1544 | ||
1545 | // Return the PLT address to use for a local symbol. These are always | |
1546 | // IRELATIVE relocs. | |
1547 | ||
1548 | template<int size, bool big_endian> | |
1549 | uint64_t | |
1550 | Output_data_plt_sparc<size, big_endian>::address_for_local( | |
1551 | const Relobj*, | |
1552 | unsigned int) | |
1553 | { | |
1554 | return this->address() + plt_index_to_offset(this->count_ + 4); | |
f5314dd5 DM |
1555 | } |
1556 | ||
1557 | static const unsigned int sparc_nop = 0x01000000; | |
1558 | static const unsigned int sparc_sethi_g1 = 0x03000000; | |
1559 | static const unsigned int sparc_branch_always = 0x30800000; | |
1560 | static const unsigned int sparc_branch_always_pt = 0x30680000; | |
1561 | static const unsigned int sparc_mov = 0x80100000; | |
1562 | static const unsigned int sparc_mov_g0_o0 = 0x90100000; | |
1563 | static const unsigned int sparc_mov_o7_g5 = 0x8a10000f; | |
1564 | static const unsigned int sparc_call_plus_8 = 0x40000002; | |
1565 | static const unsigned int sparc_ldx_o7_imm_g1 = 0xc25be000; | |
1566 | static const unsigned int sparc_jmpl_o7_g1_g1 = 0x83c3c001; | |
1567 | static const unsigned int sparc_mov_g5_o7 = 0x9e100005; | |
1568 | ||
1569 | // Write out the PLT. | |
1570 | ||
1571 | template<int size, bool big_endian> | |
1572 | void | |
1573 | Output_data_plt_sparc<size, big_endian>::do_write(Output_file* of) | |
1574 | { | |
2ea97941 | 1575 | const off_t offset = this->offset(); |
f5314dd5 DM |
1576 | const section_size_type oview_size = |
1577 | convert_to_section_size_type(this->data_size()); | |
2ea97941 | 1578 | unsigned char* const oview = of->get_output_view(offset, oview_size); |
f5314dd5 DM |
1579 | unsigned char* pov = oview; |
1580 | ||
1581 | memset(pov, 0, base_plt_entry_size * 4); | |
8c2bf391 | 1582 | pov += this->first_plt_entry_offset(); |
f5314dd5 DM |
1583 | |
1584 | unsigned int plt_offset = base_plt_entry_size * 4; | |
8c2bf391 | 1585 | const unsigned int count = this->entry_count(); |
f5314dd5 DM |
1586 | |
1587 | if (size == 64) | |
1588 | { | |
1589 | unsigned int limit; | |
1590 | ||
1591 | limit = (count > 32768 ? 32768 : count); | |
1592 | ||
1593 | for (unsigned int i = 0; i < limit; ++i) | |
1594 | { | |
1595 | elfcpp::Swap<32, true>::writeval(pov + 0x00, | |
1596 | sparc_sethi_g1 + plt_offset); | |
1597 | elfcpp::Swap<32, true>::writeval(pov + 0x04, | |
1598 | sparc_branch_always_pt + | |
1599 | (((base_plt_entry_size - | |
1600 | (plt_offset + 4)) >> 2) & | |
1601 | 0x7ffff)); | |
1602 | elfcpp::Swap<32, true>::writeval(pov + 0x08, sparc_nop); | |
1603 | elfcpp::Swap<32, true>::writeval(pov + 0x0c, sparc_nop); | |
1604 | elfcpp::Swap<32, true>::writeval(pov + 0x10, sparc_nop); | |
1605 | elfcpp::Swap<32, true>::writeval(pov + 0x14, sparc_nop); | |
1606 | elfcpp::Swap<32, true>::writeval(pov + 0x18, sparc_nop); | |
1607 | elfcpp::Swap<32, true>::writeval(pov + 0x1c, sparc_nop); | |
1608 | ||
1609 | pov += base_plt_entry_size; | |
1610 | plt_offset += base_plt_entry_size; | |
1611 | } | |
1612 | ||
1613 | if (count > 32768) | |
1614 | { | |
1615 | unsigned int ext_cnt = count - 32768; | |
1616 | unsigned int blks = ext_cnt / plt_entries_per_block; | |
1617 | ||
1618 | for (unsigned int i = 0; i < blks; ++i) | |
1619 | { | |
1620 | unsigned int data_off = (plt_entries_per_block | |
1621 | * plt_insn_chunk_size) - 4; | |
1622 | ||
1623 | for (unsigned int j = 0; j < plt_entries_per_block; ++j) | |
1624 | { | |
1625 | elfcpp::Swap<32, true>::writeval(pov + 0x00, | |
1626 | sparc_mov_o7_g5); | |
1627 | elfcpp::Swap<32, true>::writeval(pov + 0x04, | |
1628 | sparc_call_plus_8); | |
1629 | elfcpp::Swap<32, true>::writeval(pov + 0x08, | |
1630 | sparc_nop); | |
1631 | elfcpp::Swap<32, true>::writeval(pov + 0x0c, | |
1632 | sparc_ldx_o7_imm_g1 + | |
1633 | (data_off & 0x1fff)); | |
1634 | elfcpp::Swap<32, true>::writeval(pov + 0x10, | |
1635 | sparc_jmpl_o7_g1_g1); | |
1636 | elfcpp::Swap<32, true>::writeval(pov + 0x14, | |
1637 | sparc_mov_g5_o7); | |
1638 | ||
1639 | elfcpp::Swap<64, big_endian>::writeval( | |
1640 | pov + 0x4 + data_off, | |
1641 | (elfcpp::Elf_Xword) (oview - (pov + 0x04))); | |
1642 | ||
1643 | pov += plt_insn_chunk_size; | |
1644 | data_off -= 16; | |
1645 | } | |
1646 | } | |
1647 | ||
1648 | unsigned int sub_blk_cnt = ext_cnt % plt_entries_per_block; | |
1649 | for (unsigned int i = 0; i < sub_blk_cnt; ++i) | |
1650 | { | |
1651 | unsigned int data_off = (sub_blk_cnt | |
1652 | * plt_insn_chunk_size) - 4; | |
1653 | ||
1654 | for (unsigned int j = 0; j < plt_entries_per_block; ++j) | |
1655 | { | |
1656 | elfcpp::Swap<32, true>::writeval(pov + 0x00, | |
1657 | sparc_mov_o7_g5); | |
1658 | elfcpp::Swap<32, true>::writeval(pov + 0x04, | |
1659 | sparc_call_plus_8); | |
1660 | elfcpp::Swap<32, true>::writeval(pov + 0x08, | |
1661 | sparc_nop); | |
1662 | elfcpp::Swap<32, true>::writeval(pov + 0x0c, | |
1663 | sparc_ldx_o7_imm_g1 + | |
1664 | (data_off & 0x1fff)); | |
1665 | elfcpp::Swap<32, true>::writeval(pov + 0x10, | |
1666 | sparc_jmpl_o7_g1_g1); | |
1667 | elfcpp::Swap<32, true>::writeval(pov + 0x14, | |
1668 | sparc_mov_g5_o7); | |
1669 | ||
1670 | elfcpp::Swap<64, big_endian>::writeval( | |
1671 | pov + 0x4 + data_off, | |
1672 | (elfcpp::Elf_Xword) (oview - (pov + 0x04))); | |
1673 | ||
1674 | pov += plt_insn_chunk_size; | |
1675 | data_off -= 16; | |
1676 | } | |
1677 | } | |
1678 | } | |
1679 | } | |
1680 | else | |
1681 | { | |
1682 | for (unsigned int i = 0; i < count; ++i) | |
1683 | { | |
1684 | elfcpp::Swap<32, true>::writeval(pov + 0x00, | |
1685 | sparc_sethi_g1 + plt_offset); | |
1686 | elfcpp::Swap<32, true>::writeval(pov + 0x04, | |
1687 | sparc_branch_always + | |
1688 | (((- (plt_offset + 4)) >> 2) & | |
1689 | 0x003fffff)); | |
1690 | elfcpp::Swap<32, true>::writeval(pov + 0x08, sparc_nop); | |
1691 | ||
1692 | pov += base_plt_entry_size; | |
1693 | plt_offset += base_plt_entry_size; | |
1694 | } | |
1695 | ||
1696 | elfcpp::Swap<32, true>::writeval(pov, sparc_nop); | |
1697 | pov += 4; | |
1698 | } | |
1699 | ||
1700 | gold_assert(static_cast<section_size_type>(pov - oview) == oview_size); | |
1701 | ||
2ea97941 | 1702 | of->write_output_view(offset, oview_size, oview); |
f5314dd5 DM |
1703 | } |
1704 | ||
8c2bf391 DM |
1705 | // Create the PLT section. |
1706 | ||
1707 | template<int size, bool big_endian> | |
1708 | void | |
1709 | Target_sparc<size, big_endian>::make_plt_section(Symbol_table* symtab, | |
1710 | Layout* layout) | |
1711 | { | |
1712 | // Create the GOT sections first. | |
1713 | this->got_section(symtab, layout); | |
1714 | ||
1715 | // Ensure that .rela.dyn always appears before .rela.plt This is | |
1716 | // necessary due to how, on Sparc and some other targets, .rela.dyn | |
1717 | // needs to include .rela.plt in it's range. | |
1718 | this->rela_dyn_section(layout); | |
1719 | ||
1720 | this->plt_ = new Output_data_plt_sparc<size, big_endian>(layout); | |
1721 | layout->add_output_section_data(".plt", elfcpp::SHT_PROGBITS, | |
1722 | (elfcpp::SHF_ALLOC | |
1723 | | elfcpp::SHF_EXECINSTR | |
1724 | | elfcpp::SHF_WRITE), | |
1725 | this->plt_, ORDER_NON_RELRO_FIRST, false); | |
1726 | ||
1727 | // Define _PROCEDURE_LINKAGE_TABLE_ at the start of the .plt section. | |
1728 | symtab->define_in_output_data("_PROCEDURE_LINKAGE_TABLE_", NULL, | |
1729 | Symbol_table::PREDEFINED, | |
1730 | this->plt_, | |
1731 | 0, 0, elfcpp::STT_OBJECT, | |
1732 | elfcpp::STB_LOCAL, | |
1733 | elfcpp::STV_HIDDEN, 0, | |
1734 | false, false); | |
1735 | } | |
1736 | ||
f5314dd5 DM |
1737 | // Create a PLT entry for a global symbol. |
1738 | ||
1739 | template<int size, bool big_endian> | |
1740 | void | |
1741 | Target_sparc<size, big_endian>::make_plt_entry(Symbol_table* symtab, | |
1742 | Layout* layout, | |
1743 | Symbol* gsym) | |
1744 | { | |
1745 | if (gsym->has_plt_offset()) | |
1746 | return; | |
1747 | ||
1748 | if (this->plt_ == NULL) | |
8c2bf391 | 1749 | this->make_plt_section(symtab, layout); |
f5314dd5 | 1750 | |
8c2bf391 DM |
1751 | this->plt_->add_entry(symtab, layout, gsym); |
1752 | } | |
f5314dd5 | 1753 | |
8c2bf391 | 1754 | // Make a PLT entry for a local STT_GNU_IFUNC symbol. |
f5314dd5 | 1755 | |
8c2bf391 DM |
1756 | template<int size, bool big_endian> |
1757 | void | |
1758 | Target_sparc<size, big_endian>::make_local_ifunc_plt_entry( | |
1759 | Symbol_table* symtab, | |
1760 | Layout* layout, | |
1761 | Sized_relobj_file<size, big_endian>* relobj, | |
1762 | unsigned int local_sym_index) | |
1763 | { | |
1764 | if (relobj->local_has_plt_offset(local_sym_index)) | |
1765 | return; | |
1766 | if (this->plt_ == NULL) | |
1767 | this->make_plt_section(symtab, layout); | |
1768 | unsigned int plt_offset = this->plt_->add_local_ifunc_entry(symtab, layout, | |
1769 | relobj, | |
1770 | local_sym_index); | |
1771 | relobj->set_local_plt_offset(local_sym_index, plt_offset); | |
f5314dd5 DM |
1772 | } |
1773 | ||
0e70b911 CC |
1774 | // Return the number of entries in the PLT. |
1775 | ||
1776 | template<int size, bool big_endian> | |
1777 | unsigned int | |
1778 | Target_sparc<size, big_endian>::plt_entry_count() const | |
1779 | { | |
1780 | if (this->plt_ == NULL) | |
1781 | return 0; | |
1782 | return this->plt_->entry_count(); | |
1783 | } | |
1784 | ||
1785 | // Return the offset of the first non-reserved PLT entry. | |
1786 | ||
1787 | template<int size, bool big_endian> | |
1788 | unsigned int | |
1789 | Target_sparc<size, big_endian>::first_plt_entry_offset() const | |
1790 | { | |
1791 | return Output_data_plt_sparc<size, big_endian>::first_plt_entry_offset(); | |
1792 | } | |
1793 | ||
1794 | // Return the size of each PLT entry. | |
1795 | ||
1796 | template<int size, bool big_endian> | |
1797 | unsigned int | |
1798 | Target_sparc<size, big_endian>::plt_entry_size() const | |
1799 | { | |
1800 | return Output_data_plt_sparc<size, big_endian>::get_plt_entry_size(); | |
1801 | } | |
1802 | ||
f5314dd5 DM |
1803 | // Create a GOT entry for the TLS module index. |
1804 | ||
1805 | template<int size, bool big_endian> | |
1806 | unsigned int | |
6fa2a40b CC |
1807 | Target_sparc<size, big_endian>::got_mod_index_entry( |
1808 | Symbol_table* symtab, | |
1809 | Layout* layout, | |
1810 | Sized_relobj_file<size, big_endian>* object) | |
f5314dd5 DM |
1811 | { |
1812 | if (this->got_mod_index_offset_ == -1U) | |
1813 | { | |
1814 | gold_assert(symtab != NULL && layout != NULL && object != NULL); | |
1815 | Reloc_section* rela_dyn = this->rela_dyn_section(layout); | |
1816 | Output_data_got<size, big_endian>* got; | |
1817 | unsigned int got_offset; | |
1818 | ||
1819 | got = this->got_section(symtab, layout); | |
1820 | got_offset = got->add_constant(0); | |
1821 | rela_dyn->add_local(object, 0, | |
1822 | (size == 64 ? | |
1823 | elfcpp::R_SPARC_TLS_DTPMOD64 : | |
1824 | elfcpp::R_SPARC_TLS_DTPMOD32), got, | |
1825 | got_offset, 0); | |
1826 | got->add_constant(0); | |
1827 | this->got_mod_index_offset_ = got_offset; | |
1828 | } | |
1829 | return this->got_mod_index_offset_; | |
1830 | } | |
1831 | ||
f5314dd5 DM |
1832 | // Optimize the TLS relocation type based on what we know about the |
1833 | // symbol. IS_FINAL is true if the final address of this symbol is | |
1834 | // known at link time. | |
1835 | ||
1836 | static tls::Tls_optimization | |
1837 | optimize_tls_reloc(bool is_final, int r_type) | |
1838 | { | |
1839 | // If we are generating a shared library, then we can't do anything | |
1840 | // in the linker. | |
1841 | if (parameters->options().shared()) | |
1842 | return tls::TLSOPT_NONE; | |
1843 | ||
1844 | switch (r_type) | |
1845 | { | |
1846 | case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic | |
1847 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
1848 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
1849 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
1850 | // These are General-Dynamic which permits fully general TLS | |
1851 | // access. Since we know that we are generating an executable, | |
1852 | // we can convert this to Initial-Exec. If we also know that | |
1853 | // this is a local symbol, we can further switch to Local-Exec. | |
1854 | if (is_final) | |
1855 | return tls::TLSOPT_TO_LE; | |
1856 | return tls::TLSOPT_TO_IE; | |
1857 | ||
1858 | case elfcpp::R_SPARC_TLS_LDM_HI22: // Local-dynamic | |
1859 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
1860 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
1861 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
1862 | // This is Local-Dynamic, which refers to a local symbol in the | |
1863 | // dynamic TLS block. Since we know that we generating an | |
1864 | // executable, we can switch to Local-Exec. | |
1865 | return tls::TLSOPT_TO_LE; | |
1866 | ||
1867 | case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic | |
1868 | case elfcpp::R_SPARC_TLS_LDO_LOX10: | |
1869 | case elfcpp::R_SPARC_TLS_LDO_ADD: | |
1870 | // Another type of Local-Dynamic relocation. | |
1871 | return tls::TLSOPT_TO_LE; | |
1872 | ||
1873 | case elfcpp::R_SPARC_TLS_IE_HI22: // Initial-exec | |
1874 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
1875 | case elfcpp::R_SPARC_TLS_IE_LD: | |
1876 | case elfcpp::R_SPARC_TLS_IE_LDX: | |
9efe6174 | 1877 | case elfcpp::R_SPARC_TLS_IE_ADD: |
f5314dd5 DM |
1878 | // These are Initial-Exec relocs which get the thread offset |
1879 | // from the GOT. If we know that we are linking against the | |
1880 | // local symbol, we can switch to Local-Exec, which links the | |
1881 | // thread offset into the instruction. | |
1882 | if (is_final) | |
1883 | return tls::TLSOPT_TO_LE; | |
1884 | return tls::TLSOPT_NONE; | |
1885 | ||
1886 | case elfcpp::R_SPARC_TLS_LE_HIX22: // Local-exec | |
1887 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
1888 | // When we already have Local-Exec, there is nothing further we | |
1889 | // can do. | |
1890 | return tls::TLSOPT_NONE; | |
1891 | ||
1892 | default: | |
1893 | gold_unreachable(); | |
1894 | } | |
1895 | } | |
1896 | ||
95a2c8d6 RS |
1897 | // Get the Reference_flags for a particular relocation. |
1898 | ||
1899 | template<int size, bool big_endian> | |
1900 | int | |
1901 | Target_sparc<size, big_endian>::Scan::get_reference_flags(unsigned int r_type) | |
1902 | { | |
1903 | r_type &= 0xff; | |
1904 | switch (r_type) | |
1905 | { | |
1906 | case elfcpp::R_SPARC_NONE: | |
1907 | case elfcpp::R_SPARC_REGISTER: | |
1908 | case elfcpp::R_SPARC_GNU_VTINHERIT: | |
1909 | case elfcpp::R_SPARC_GNU_VTENTRY: | |
1910 | // No symbol reference. | |
1911 | return 0; | |
1912 | ||
1913 | case elfcpp::R_SPARC_UA64: | |
1914 | case elfcpp::R_SPARC_64: | |
1915 | case elfcpp::R_SPARC_HIX22: | |
1916 | case elfcpp::R_SPARC_LOX10: | |
2615994e | 1917 | case elfcpp::R_SPARC_H34: |
95a2c8d6 RS |
1918 | case elfcpp::R_SPARC_H44: |
1919 | case elfcpp::R_SPARC_M44: | |
1920 | case elfcpp::R_SPARC_L44: | |
1921 | case elfcpp::R_SPARC_HH22: | |
1922 | case elfcpp::R_SPARC_HM10: | |
1923 | case elfcpp::R_SPARC_LM22: | |
1924 | case elfcpp::R_SPARC_HI22: | |
1925 | case elfcpp::R_SPARC_LO10: | |
1926 | case elfcpp::R_SPARC_OLO10: | |
1927 | case elfcpp::R_SPARC_UA32: | |
1928 | case elfcpp::R_SPARC_32: | |
1929 | case elfcpp::R_SPARC_UA16: | |
1930 | case elfcpp::R_SPARC_16: | |
1931 | case elfcpp::R_SPARC_11: | |
1932 | case elfcpp::R_SPARC_10: | |
1933 | case elfcpp::R_SPARC_8: | |
1934 | case elfcpp::R_SPARC_7: | |
1935 | case elfcpp::R_SPARC_6: | |
1936 | case elfcpp::R_SPARC_5: | |
1937 | return Symbol::ABSOLUTE_REF; | |
1938 | ||
1939 | case elfcpp::R_SPARC_DISP8: | |
1940 | case elfcpp::R_SPARC_DISP16: | |
1941 | case elfcpp::R_SPARC_DISP32: | |
1942 | case elfcpp::R_SPARC_DISP64: | |
1943 | case elfcpp::R_SPARC_PC_HH22: | |
1944 | case elfcpp::R_SPARC_PC_HM10: | |
1945 | case elfcpp::R_SPARC_PC_LM22: | |
1946 | case elfcpp::R_SPARC_PC10: | |
1947 | case elfcpp::R_SPARC_PC22: | |
1948 | case elfcpp::R_SPARC_WDISP30: | |
1949 | case elfcpp::R_SPARC_WDISP22: | |
1950 | case elfcpp::R_SPARC_WDISP19: | |
1951 | case elfcpp::R_SPARC_WDISP16: | |
2615994e | 1952 | case elfcpp::R_SPARC_WDISP10: |
95a2c8d6 RS |
1953 | return Symbol::RELATIVE_REF; |
1954 | ||
1955 | case elfcpp::R_SPARC_PLT64: | |
1956 | case elfcpp::R_SPARC_PLT32: | |
1957 | case elfcpp::R_SPARC_HIPLT22: | |
1958 | case elfcpp::R_SPARC_LOPLT10: | |
1959 | case elfcpp::R_SPARC_PCPLT10: | |
1960 | return Symbol::FUNCTION_CALL | Symbol::ABSOLUTE_REF; | |
1961 | ||
1962 | case elfcpp::R_SPARC_PCPLT32: | |
1963 | case elfcpp::R_SPARC_PCPLT22: | |
1964 | case elfcpp::R_SPARC_WPLT30: | |
1965 | return Symbol::FUNCTION_CALL | Symbol::RELATIVE_REF; | |
1966 | ||
1967 | case elfcpp::R_SPARC_GOTDATA_OP: | |
1968 | case elfcpp::R_SPARC_GOTDATA_OP_HIX22: | |
1969 | case elfcpp::R_SPARC_GOTDATA_OP_LOX10: | |
1970 | case elfcpp::R_SPARC_GOT10: | |
1971 | case elfcpp::R_SPARC_GOT13: | |
1972 | case elfcpp::R_SPARC_GOT22: | |
1973 | // Absolute in GOT. | |
1974 | return Symbol::ABSOLUTE_REF; | |
1975 | ||
1976 | case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic | |
1977 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
1978 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
1979 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
1980 | case elfcpp::R_SPARC_TLS_LDM_HI22: // Local-dynamic | |
1981 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
1982 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
1983 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
1984 | case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic | |
1985 | case elfcpp::R_SPARC_TLS_LDO_LOX10: | |
1986 | case elfcpp::R_SPARC_TLS_LDO_ADD: | |
1987 | case elfcpp::R_SPARC_TLS_LE_HIX22: | |
1988 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
1989 | case elfcpp::R_SPARC_TLS_IE_HI22: // Initial-exec | |
1990 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
1991 | case elfcpp::R_SPARC_TLS_IE_LD: | |
1992 | case elfcpp::R_SPARC_TLS_IE_LDX: | |
1993 | case elfcpp::R_SPARC_TLS_IE_ADD: | |
1994 | return Symbol::TLS_REF; | |
1995 | ||
1996 | case elfcpp::R_SPARC_COPY: | |
1997 | case elfcpp::R_SPARC_GLOB_DAT: | |
1998 | case elfcpp::R_SPARC_JMP_SLOT: | |
8c2bf391 | 1999 | case elfcpp::R_SPARC_JMP_IREL: |
95a2c8d6 | 2000 | case elfcpp::R_SPARC_RELATIVE: |
8c2bf391 | 2001 | case elfcpp::R_SPARC_IRELATIVE: |
95a2c8d6 RS |
2002 | case elfcpp::R_SPARC_TLS_DTPMOD64: |
2003 | case elfcpp::R_SPARC_TLS_DTPMOD32: | |
2004 | case elfcpp::R_SPARC_TLS_DTPOFF64: | |
2005 | case elfcpp::R_SPARC_TLS_DTPOFF32: | |
2006 | case elfcpp::R_SPARC_TLS_TPOFF64: | |
2007 | case elfcpp::R_SPARC_TLS_TPOFF32: | |
2008 | default: | |
2009 | // Not expected. We will give an error later. | |
2010 | return 0; | |
2011 | } | |
2012 | } | |
2013 | ||
f5314dd5 DM |
2014 | // Generate a PLT entry slot for a call to __tls_get_addr |
2015 | template<int size, bool big_endian> | |
2016 | void | |
2017 | Target_sparc<size, big_endian>::Scan::generate_tls_call(Symbol_table* symtab, | |
2018 | Layout* layout, | |
2019 | Target_sparc<size, big_endian>* target) | |
2020 | { | |
2021 | Symbol* gsym = target->tls_get_addr_sym(symtab); | |
2022 | ||
2023 | target->make_plt_entry(symtab, layout, gsym); | |
2024 | } | |
2025 | ||
2026 | // Report an unsupported relocation against a local symbol. | |
2027 | ||
2028 | template<int size, bool big_endian> | |
2029 | void | |
2030 | Target_sparc<size, big_endian>::Scan::unsupported_reloc_local( | |
6fa2a40b | 2031 | Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
2032 | unsigned int r_type) |
2033 | { | |
2034 | gold_error(_("%s: unsupported reloc %u against local symbol"), | |
2035 | object->name().c_str(), r_type); | |
2036 | } | |
2037 | ||
32b769e1 DM |
2038 | // We are about to emit a dynamic relocation of type R_TYPE. If the |
2039 | // dynamic linker does not support it, issue an error. | |
2040 | ||
2041 | template<int size, bool big_endian> | |
2042 | void | |
2043 | Target_sparc<size, big_endian>::Scan::check_non_pic(Relobj* object, unsigned int r_type) | |
2044 | { | |
2045 | gold_assert(r_type != elfcpp::R_SPARC_NONE); | |
2046 | ||
2047 | if (size == 64) | |
2048 | { | |
2049 | switch (r_type) | |
2050 | { | |
2051 | // These are the relocation types supported by glibc for sparc 64-bit. | |
2052 | case elfcpp::R_SPARC_RELATIVE: | |
8c2bf391 | 2053 | case elfcpp::R_SPARC_IRELATIVE: |
32b769e1 DM |
2054 | case elfcpp::R_SPARC_COPY: |
2055 | case elfcpp::R_SPARC_64: | |
2056 | case elfcpp::R_SPARC_GLOB_DAT: | |
2057 | case elfcpp::R_SPARC_JMP_SLOT: | |
8c2bf391 | 2058 | case elfcpp::R_SPARC_JMP_IREL: |
32b769e1 DM |
2059 | case elfcpp::R_SPARC_TLS_DTPMOD64: |
2060 | case elfcpp::R_SPARC_TLS_DTPOFF64: | |
2061 | case elfcpp::R_SPARC_TLS_TPOFF64: | |
2062 | case elfcpp::R_SPARC_TLS_LE_HIX22: | |
2063 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
2064 | case elfcpp::R_SPARC_8: | |
2065 | case elfcpp::R_SPARC_16: | |
2066 | case elfcpp::R_SPARC_DISP8: | |
2067 | case elfcpp::R_SPARC_DISP16: | |
2068 | case elfcpp::R_SPARC_DISP32: | |
2069 | case elfcpp::R_SPARC_WDISP30: | |
2070 | case elfcpp::R_SPARC_LO10: | |
2071 | case elfcpp::R_SPARC_HI22: | |
2072 | case elfcpp::R_SPARC_OLO10: | |
2615994e | 2073 | case elfcpp::R_SPARC_H34: |
32b769e1 DM |
2074 | case elfcpp::R_SPARC_H44: |
2075 | case elfcpp::R_SPARC_M44: | |
2076 | case elfcpp::R_SPARC_L44: | |
2077 | case elfcpp::R_SPARC_HH22: | |
2078 | case elfcpp::R_SPARC_HM10: | |
2079 | case elfcpp::R_SPARC_LM22: | |
2080 | case elfcpp::R_SPARC_UA16: | |
2081 | case elfcpp::R_SPARC_UA32: | |
2082 | case elfcpp::R_SPARC_UA64: | |
2083 | return; | |
2084 | ||
2085 | default: | |
2086 | break; | |
2087 | } | |
2088 | } | |
2089 | else | |
2090 | { | |
2091 | switch (r_type) | |
2092 | { | |
2093 | // These are the relocation types supported by glibc for sparc 32-bit. | |
2094 | case elfcpp::R_SPARC_RELATIVE: | |
8c2bf391 | 2095 | case elfcpp::R_SPARC_IRELATIVE: |
32b769e1 DM |
2096 | case elfcpp::R_SPARC_COPY: |
2097 | case elfcpp::R_SPARC_GLOB_DAT: | |
2098 | case elfcpp::R_SPARC_32: | |
2099 | case elfcpp::R_SPARC_JMP_SLOT: | |
8c2bf391 | 2100 | case elfcpp::R_SPARC_JMP_IREL: |
32b769e1 DM |
2101 | case elfcpp::R_SPARC_TLS_DTPMOD32: |
2102 | case elfcpp::R_SPARC_TLS_DTPOFF32: | |
2103 | case elfcpp::R_SPARC_TLS_TPOFF32: | |
2104 | case elfcpp::R_SPARC_TLS_LE_HIX22: | |
2105 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
2106 | case elfcpp::R_SPARC_8: | |
2107 | case elfcpp::R_SPARC_16: | |
2108 | case elfcpp::R_SPARC_DISP8: | |
2109 | case elfcpp::R_SPARC_DISP16: | |
2110 | case elfcpp::R_SPARC_DISP32: | |
2111 | case elfcpp::R_SPARC_LO10: | |
2112 | case elfcpp::R_SPARC_WDISP30: | |
2113 | case elfcpp::R_SPARC_HI22: | |
2114 | case elfcpp::R_SPARC_UA16: | |
2115 | case elfcpp::R_SPARC_UA32: | |
2116 | return; | |
2117 | ||
2118 | default: | |
2119 | break; | |
2120 | } | |
2121 | } | |
2122 | ||
2123 | // This prevents us from issuing more than one error per reloc | |
2124 | // section. But we can still wind up issuing more than one | |
2125 | // error per object file. | |
2126 | if (this->issued_non_pic_error_) | |
2127 | return; | |
33aea2fd | 2128 | gold_assert(parameters->options().output_is_position_independent()); |
32b769e1 DM |
2129 | object->error(_("requires unsupported dynamic reloc; " |
2130 | "recompile with -fPIC")); | |
2131 | this->issued_non_pic_error_ = true; | |
2132 | return; | |
2133 | } | |
2134 | ||
8c2bf391 DM |
2135 | // Return whether we need to make a PLT entry for a relocation of the |
2136 | // given type against a STT_GNU_IFUNC symbol. | |
2137 | ||
2138 | template<int size, bool big_endian> | |
2139 | bool | |
2140 | Target_sparc<size, big_endian>::Scan::reloc_needs_plt_for_ifunc( | |
2141 | Sized_relobj_file<size, big_endian>* object, | |
2142 | unsigned int r_type) | |
2143 | { | |
2144 | int flags = Scan::get_reference_flags(r_type); | |
2145 | if (flags & Symbol::TLS_REF) | |
2146 | gold_error(_("%s: unsupported TLS reloc %u for IFUNC symbol"), | |
2147 | object->name().c_str(), r_type); | |
2148 | return flags != 0; | |
2149 | } | |
2150 | ||
f5314dd5 DM |
2151 | // Scan a relocation for a local symbol. |
2152 | ||
2153 | template<int size, bool big_endian> | |
2154 | inline void | |
2155 | Target_sparc<size, big_endian>::Scan::local( | |
f5314dd5 DM |
2156 | Symbol_table* symtab, |
2157 | Layout* layout, | |
2158 | Target_sparc<size, big_endian>* target, | |
6fa2a40b | 2159 | Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
2160 | unsigned int data_shndx, |
2161 | Output_section* output_section, | |
2162 | const elfcpp::Rela<size, big_endian>& reloc, | |
2163 | unsigned int r_type, | |
2164 | const elfcpp::Sym<size, big_endian>& lsym) | |
2165 | { | |
8c2bf391 | 2166 | bool is_ifunc = lsym.get_st_type() == elfcpp::STT_GNU_IFUNC; |
f5314dd5 | 2167 | unsigned int orig_r_type = r_type; |
f5314dd5 | 2168 | r_type &= 0xff; |
8c2bf391 DM |
2169 | |
2170 | if (is_ifunc | |
2171 | && this->reloc_needs_plt_for_ifunc(object, r_type)) | |
2172 | { | |
2173 | unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); | |
2174 | target->make_local_ifunc_plt_entry(symtab, layout, object, r_sym); | |
2175 | } | |
2176 | ||
f5314dd5 DM |
2177 | switch (r_type) |
2178 | { | |
2179 | case elfcpp::R_SPARC_NONE: | |
2180 | case elfcpp::R_SPARC_REGISTER: | |
2181 | case elfcpp::R_SPARC_GNU_VTINHERIT: | |
2182 | case elfcpp::R_SPARC_GNU_VTENTRY: | |
2183 | break; | |
2184 | ||
2185 | case elfcpp::R_SPARC_64: | |
2186 | case elfcpp::R_SPARC_32: | |
2187 | // If building a shared library (or a position-independent | |
2188 | // executable), we need to create a dynamic relocation for | |
2189 | // this location. The relocation applied at link time will | |
2190 | // apply the link-time value, so we flag the location with | |
2191 | // an R_SPARC_RELATIVE relocation so the dynamic loader can | |
2192 | // relocate it easily. | |
2193 | if (parameters->options().output_is_position_independent()) | |
2194 | { | |
2195 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
2196 | unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); | |
2197 | rela_dyn->add_local_relative(object, r_sym, elfcpp::R_SPARC_RELATIVE, | |
2198 | output_section, data_shndx, | |
2199 | reloc.get_r_offset(), | |
8c2bf391 | 2200 | reloc.get_r_addend(), is_ifunc); |
f5314dd5 DM |
2201 | } |
2202 | break; | |
2203 | ||
2204 | case elfcpp::R_SPARC_HIX22: | |
2205 | case elfcpp::R_SPARC_LOX10: | |
2615994e | 2206 | case elfcpp::R_SPARC_H34: |
f5314dd5 DM |
2207 | case elfcpp::R_SPARC_H44: |
2208 | case elfcpp::R_SPARC_M44: | |
2209 | case elfcpp::R_SPARC_L44: | |
2210 | case elfcpp::R_SPARC_HH22: | |
2211 | case elfcpp::R_SPARC_HM10: | |
2212 | case elfcpp::R_SPARC_LM22: | |
2213 | case elfcpp::R_SPARC_UA64: | |
2214 | case elfcpp::R_SPARC_UA32: | |
2215 | case elfcpp::R_SPARC_UA16: | |
2216 | case elfcpp::R_SPARC_HI22: | |
2217 | case elfcpp::R_SPARC_LO10: | |
2218 | case elfcpp::R_SPARC_OLO10: | |
2219 | case elfcpp::R_SPARC_16: | |
2220 | case elfcpp::R_SPARC_11: | |
2221 | case elfcpp::R_SPARC_10: | |
2222 | case elfcpp::R_SPARC_8: | |
2223 | case elfcpp::R_SPARC_7: | |
2224 | case elfcpp::R_SPARC_6: | |
2225 | case elfcpp::R_SPARC_5: | |
2226 | // If building a shared library (or a position-independent | |
2227 | // executable), we need to create a dynamic relocation for | |
2228 | // this location. | |
2229 | if (parameters->options().output_is_position_independent()) | |
2230 | { | |
2231 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
684b268a | 2232 | unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); |
32b769e1 DM |
2233 | |
2234 | check_non_pic(object, r_type); | |
f5314dd5 DM |
2235 | if (lsym.get_st_type() != elfcpp::STT_SECTION) |
2236 | { | |
f5314dd5 DM |
2237 | rela_dyn->add_local(object, r_sym, orig_r_type, output_section, |
2238 | data_shndx, reloc.get_r_offset(), | |
2239 | reloc.get_r_addend()); | |
2240 | } | |
2241 | else | |
2242 | { | |
f5314dd5 | 2243 | gold_assert(lsym.get_st_value() == 0); |
0da6fa6c DM |
2244 | rela_dyn->add_symbolless_local_addend(object, r_sym, orig_r_type, |
2245 | output_section, data_shndx, | |
2246 | reloc.get_r_offset(), | |
2247 | reloc.get_r_addend()); | |
f5314dd5 DM |
2248 | } |
2249 | } | |
2250 | break; | |
2251 | ||
2252 | case elfcpp::R_SPARC_WDISP30: | |
8861f32b | 2253 | case elfcpp::R_SPARC_WPLT30: |
f5314dd5 DM |
2254 | case elfcpp::R_SPARC_WDISP22: |
2255 | case elfcpp::R_SPARC_WDISP19: | |
2256 | case elfcpp::R_SPARC_WDISP16: | |
2615994e | 2257 | case elfcpp::R_SPARC_WDISP10: |
f5314dd5 DM |
2258 | case elfcpp::R_SPARC_DISP8: |
2259 | case elfcpp::R_SPARC_DISP16: | |
2260 | case elfcpp::R_SPARC_DISP32: | |
2261 | case elfcpp::R_SPARC_DISP64: | |
2262 | case elfcpp::R_SPARC_PC10: | |
2263 | case elfcpp::R_SPARC_PC22: | |
2264 | break; | |
2265 | ||
024c4466 DM |
2266 | case elfcpp::R_SPARC_GOTDATA_OP: |
2267 | case elfcpp::R_SPARC_GOTDATA_OP_HIX22: | |
2268 | case elfcpp::R_SPARC_GOTDATA_OP_LOX10: | |
f5314dd5 DM |
2269 | case elfcpp::R_SPARC_GOT10: |
2270 | case elfcpp::R_SPARC_GOT13: | |
2271 | case elfcpp::R_SPARC_GOT22: | |
2272 | { | |
2273 | // The symbol requires a GOT entry. | |
2274 | Output_data_got<size, big_endian>* got; | |
2275 | unsigned int r_sym; | |
2276 | ||
2277 | got = target->got_section(symtab, layout); | |
2278 | r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); | |
2279 | ||
2280 | // If we are generating a shared object, we need to add a | |
2281 | // dynamic relocation for this symbol's GOT entry. | |
2282 | if (parameters->options().output_is_position_independent()) | |
2283 | { | |
2284 | if (!object->local_has_got_offset(r_sym, GOT_TYPE_STANDARD)) | |
2285 | { | |
2286 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
8c2bf391 | 2287 | unsigned int off = got->add_constant(0); |
f5314dd5 DM |
2288 | object->set_local_got_offset(r_sym, GOT_TYPE_STANDARD, off); |
2289 | rela_dyn->add_local_relative(object, r_sym, | |
2290 | elfcpp::R_SPARC_RELATIVE, | |
8c2bf391 | 2291 | got, off, 0, is_ifunc); |
f5314dd5 DM |
2292 | } |
2293 | } | |
2294 | else | |
2295 | got->add_local(object, r_sym, GOT_TYPE_STANDARD); | |
2296 | } | |
2297 | break; | |
2298 | ||
2299 | // These are initial TLS relocs, which are expected when | |
2300 | // linking. | |
2301 | case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic | |
2302 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
2303 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
2304 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
2305 | case elfcpp::R_SPARC_TLS_LDM_HI22 : // Local-dynamic | |
2306 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
2307 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
2308 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
2309 | case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic | |
2310 | case elfcpp::R_SPARC_TLS_LDO_LOX10: | |
2311 | case elfcpp::R_SPARC_TLS_LDO_ADD: | |
2312 | case elfcpp::R_SPARC_TLS_IE_HI22: // Initial-exec | |
2313 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
2314 | case elfcpp::R_SPARC_TLS_IE_LD: | |
2315 | case elfcpp::R_SPARC_TLS_IE_LDX: | |
9efe6174 | 2316 | case elfcpp::R_SPARC_TLS_IE_ADD: |
f5314dd5 DM |
2317 | case elfcpp::R_SPARC_TLS_LE_HIX22: // Local-exec |
2318 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
2319 | { | |
2320 | bool output_is_shared = parameters->options().shared(); | |
2321 | const tls::Tls_optimization optimized_type | |
2322 | = optimize_tls_reloc(!output_is_shared, r_type); | |
2323 | switch (r_type) | |
2324 | { | |
2325 | case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic | |
2326 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
2327 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
2328 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
2329 | if (optimized_type == tls::TLSOPT_NONE) | |
2330 | { | |
2331 | // Create a pair of GOT entries for the module index and | |
2332 | // dtv-relative offset. | |
2333 | Output_data_got<size, big_endian>* got | |
2334 | = target->got_section(symtab, layout); | |
2335 | unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); | |
d491d34e ILT |
2336 | unsigned int shndx = lsym.get_st_shndx(); |
2337 | bool is_ordinary; | |
2338 | shndx = object->adjust_sym_shndx(r_sym, shndx, &is_ordinary); | |
2339 | if (!is_ordinary) | |
2340 | object->error(_("local symbol %u has bad shndx %u"), | |
2341 | r_sym, shndx); | |
2342 | else | |
83896202 ILT |
2343 | got->add_local_pair_with_rel(object, r_sym, |
2344 | lsym.get_st_shndx(), | |
2345 | GOT_TYPE_TLS_PAIR, | |
2346 | target->rela_dyn_section(layout), | |
2347 | (size == 64 | |
2348 | ? elfcpp::R_SPARC_TLS_DTPMOD64 | |
2349 | : elfcpp::R_SPARC_TLS_DTPMOD32), | |
2350 | 0); | |
f5314dd5 DM |
2351 | if (r_type == elfcpp::R_SPARC_TLS_GD_CALL) |
2352 | generate_tls_call(symtab, layout, target); | |
2353 | } | |
2354 | else if (optimized_type != tls::TLSOPT_TO_LE) | |
2355 | unsupported_reloc_local(object, r_type); | |
2356 | break; | |
2357 | ||
2358 | case elfcpp::R_SPARC_TLS_LDM_HI22 : // Local-dynamic | |
2359 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
2360 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
2361 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
2362 | if (optimized_type == tls::TLSOPT_NONE) | |
2363 | { | |
2364 | // Create a GOT entry for the module index. | |
2365 | target->got_mod_index_entry(symtab, layout, object); | |
2366 | ||
2367 | if (r_type == elfcpp::R_SPARC_TLS_LDM_CALL) | |
2368 | generate_tls_call(symtab, layout, target); | |
2369 | } | |
2370 | else if (optimized_type != tls::TLSOPT_TO_LE) | |
2371 | unsupported_reloc_local(object, r_type); | |
2372 | break; | |
2373 | ||
2374 | case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic | |
2375 | case elfcpp::R_SPARC_TLS_LDO_LOX10: | |
2376 | case elfcpp::R_SPARC_TLS_LDO_ADD: | |
2377 | break; | |
2378 | ||
2379 | case elfcpp::R_SPARC_TLS_IE_HI22: // Initial-exec | |
2380 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
2381 | case elfcpp::R_SPARC_TLS_IE_LD: | |
2382 | case elfcpp::R_SPARC_TLS_IE_LDX: | |
9efe6174 | 2383 | case elfcpp::R_SPARC_TLS_IE_ADD: |
f5314dd5 DM |
2384 | layout->set_has_static_tls(); |
2385 | if (optimized_type == tls::TLSOPT_NONE) | |
2386 | { | |
2387 | // Create a GOT entry for the tp-relative offset. | |
2388 | Output_data_got<size, big_endian>* got | |
2389 | = target->got_section(symtab, layout); | |
2390 | unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); | |
2391 | ||
2392 | if (!object->local_has_got_offset(r_sym, GOT_TYPE_TLS_OFFSET)) | |
2393 | { | |
2394 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
0da6fa6c DM |
2395 | unsigned int off = got->add_constant(0); |
2396 | ||
2397 | object->set_local_got_offset(r_sym, GOT_TYPE_TLS_OFFSET, off); | |
684b268a | 2398 | |
0da6fa6c DM |
2399 | rela_dyn->add_symbolless_local_addend(object, r_sym, |
2400 | (size == 64 ? | |
2401 | elfcpp::R_SPARC_TLS_TPOFF64 : | |
2402 | elfcpp::R_SPARC_TLS_TPOFF32), | |
2403 | got, off, 0); | |
f5314dd5 DM |
2404 | } |
2405 | } | |
2406 | else if (optimized_type != tls::TLSOPT_TO_LE) | |
2407 | unsupported_reloc_local(object, r_type); | |
2408 | break; | |
2409 | ||
2410 | case elfcpp::R_SPARC_TLS_LE_HIX22: // Local-exec | |
2411 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
2412 | layout->set_has_static_tls(); | |
2413 | if (output_is_shared) | |
2414 | { | |
2415 | // We need to create a dynamic relocation. | |
2416 | gold_assert(lsym.get_st_type() != elfcpp::STT_SECTION); | |
2417 | unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); | |
2418 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
0da6fa6c DM |
2419 | rela_dyn->add_symbolless_local_addend(object, r_sym, r_type, |
2420 | output_section, data_shndx, | |
2421 | reloc.get_r_offset(), 0); | |
f5314dd5 DM |
2422 | } |
2423 | break; | |
2424 | } | |
2425 | } | |
2426 | break; | |
2427 | ||
2428 | // These are relocations which should only be seen by the | |
2429 | // dynamic linker, and should never be seen here. | |
2430 | case elfcpp::R_SPARC_COPY: | |
2431 | case elfcpp::R_SPARC_GLOB_DAT: | |
2432 | case elfcpp::R_SPARC_JMP_SLOT: | |
8c2bf391 | 2433 | case elfcpp::R_SPARC_JMP_IREL: |
f5314dd5 | 2434 | case elfcpp::R_SPARC_RELATIVE: |
8c2bf391 | 2435 | case elfcpp::R_SPARC_IRELATIVE: |
f5314dd5 DM |
2436 | case elfcpp::R_SPARC_TLS_DTPMOD64: |
2437 | case elfcpp::R_SPARC_TLS_DTPMOD32: | |
2438 | case elfcpp::R_SPARC_TLS_DTPOFF64: | |
2439 | case elfcpp::R_SPARC_TLS_DTPOFF32: | |
2440 | case elfcpp::R_SPARC_TLS_TPOFF64: | |
2441 | case elfcpp::R_SPARC_TLS_TPOFF32: | |
2442 | gold_error(_("%s: unexpected reloc %u in object file"), | |
2443 | object->name().c_str(), r_type); | |
2444 | break; | |
2445 | ||
2446 | default: | |
2447 | unsupported_reloc_local(object, r_type); | |
2448 | break; | |
2449 | } | |
2450 | } | |
2451 | ||
2452 | // Report an unsupported relocation against a global symbol. | |
2453 | ||
2454 | template<int size, bool big_endian> | |
2455 | void | |
2456 | Target_sparc<size, big_endian>::Scan::unsupported_reloc_global( | |
6fa2a40b | 2457 | Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
2458 | unsigned int r_type, |
2459 | Symbol* gsym) | |
2460 | { | |
2461 | gold_error(_("%s: unsupported reloc %u against global symbol %s"), | |
2462 | object->name().c_str(), r_type, gsym->demangled_name().c_str()); | |
2463 | } | |
2464 | ||
2465 | // Scan a relocation for a global symbol. | |
2466 | ||
2467 | template<int size, bool big_endian> | |
2468 | inline void | |
2469 | Target_sparc<size, big_endian>::Scan::global( | |
f5314dd5 DM |
2470 | Symbol_table* symtab, |
2471 | Layout* layout, | |
2472 | Target_sparc<size, big_endian>* target, | |
6fa2a40b | 2473 | Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
2474 | unsigned int data_shndx, |
2475 | Output_section* output_section, | |
2476 | const elfcpp::Rela<size, big_endian>& reloc, | |
2477 | unsigned int r_type, | |
2478 | Symbol* gsym) | |
2479 | { | |
2480 | unsigned int orig_r_type = r_type; | |
8c2bf391 | 2481 | bool is_ifunc = gsym->type() == elfcpp::STT_GNU_IFUNC; |
f5314dd5 | 2482 | |
9efe6174 ILT |
2483 | // A reference to _GLOBAL_OFFSET_TABLE_ implies that we need a got |
2484 | // section. We check here to avoid creating a dynamic reloc against | |
2485 | // _GLOBAL_OFFSET_TABLE_. | |
2486 | if (!target->has_got_section() | |
2487 | && strcmp(gsym->name(), "_GLOBAL_OFFSET_TABLE_") == 0) | |
2488 | target->got_section(symtab, layout); | |
2489 | ||
f5314dd5 | 2490 | r_type &= 0xff; |
8c2bf391 DM |
2491 | |
2492 | // A STT_GNU_IFUNC symbol may require a PLT entry. | |
2493 | if (is_ifunc | |
2494 | && this->reloc_needs_plt_for_ifunc(object, r_type)) | |
2495 | target->make_plt_entry(symtab, layout, gsym); | |
2496 | ||
f5314dd5 DM |
2497 | switch (r_type) |
2498 | { | |
2499 | case elfcpp::R_SPARC_NONE: | |
2500 | case elfcpp::R_SPARC_REGISTER: | |
2501 | case elfcpp::R_SPARC_GNU_VTINHERIT: | |
2502 | case elfcpp::R_SPARC_GNU_VTENTRY: | |
2503 | break; | |
2504 | ||
2505 | case elfcpp::R_SPARC_PLT64: | |
2506 | case elfcpp::R_SPARC_PLT32: | |
2507 | case elfcpp::R_SPARC_HIPLT22: | |
2508 | case elfcpp::R_SPARC_LOPLT10: | |
2509 | case elfcpp::R_SPARC_PCPLT32: | |
2510 | case elfcpp::R_SPARC_PCPLT22: | |
2511 | case elfcpp::R_SPARC_PCPLT10: | |
2512 | case elfcpp::R_SPARC_WPLT30: | |
2513 | // If the symbol is fully resolved, this is just a PC32 reloc. | |
2514 | // Otherwise we need a PLT entry. | |
2515 | if (gsym->final_value_is_known()) | |
2516 | break; | |
2517 | // If building a shared library, we can also skip the PLT entry | |
2518 | // if the symbol is defined in the output file and is protected | |
2519 | // or hidden. | |
2520 | if (gsym->is_defined() | |
2521 | && !gsym->is_from_dynobj() | |
2522 | && !gsym->is_preemptible()) | |
2523 | break; | |
2524 | target->make_plt_entry(symtab, layout, gsym); | |
2525 | break; | |
2526 | ||
2527 | case elfcpp::R_SPARC_DISP8: | |
2528 | case elfcpp::R_SPARC_DISP16: | |
2529 | case elfcpp::R_SPARC_DISP32: | |
2530 | case elfcpp::R_SPARC_DISP64: | |
2531 | case elfcpp::R_SPARC_PC_HH22: | |
2532 | case elfcpp::R_SPARC_PC_HM10: | |
2533 | case elfcpp::R_SPARC_PC_LM22: | |
2534 | case elfcpp::R_SPARC_PC10: | |
2535 | case elfcpp::R_SPARC_PC22: | |
2536 | case elfcpp::R_SPARC_WDISP30: | |
2537 | case elfcpp::R_SPARC_WDISP22: | |
2538 | case elfcpp::R_SPARC_WDISP19: | |
2539 | case elfcpp::R_SPARC_WDISP16: | |
2615994e | 2540 | case elfcpp::R_SPARC_WDISP10: |
f5314dd5 DM |
2541 | { |
2542 | if (gsym->needs_plt_entry()) | |
2543 | target->make_plt_entry(symtab, layout, gsym); | |
2544 | // Make a dynamic relocation if necessary. | |
95a2c8d6 | 2545 | if (gsym->needs_dynamic_reloc(Scan::get_reference_flags(r_type))) |
f5314dd5 | 2546 | { |
966d4097 | 2547 | if (gsym->may_need_copy_reloc()) |
f5314dd5 | 2548 | { |
12c0daef | 2549 | target->copy_reloc(symtab, layout, object, |
f5314dd5 DM |
2550 | data_shndx, output_section, gsym, |
2551 | reloc); | |
2552 | } | |
2553 | else | |
2554 | { | |
2555 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
32b769e1 | 2556 | check_non_pic(object, r_type); |
f5314dd5 DM |
2557 | rela_dyn->add_global(gsym, orig_r_type, output_section, object, |
2558 | data_shndx, reloc.get_r_offset(), | |
2559 | reloc.get_r_addend()); | |
2560 | } | |
2561 | } | |
2562 | } | |
2563 | break; | |
2564 | ||
2565 | case elfcpp::R_SPARC_UA64: | |
2566 | case elfcpp::R_SPARC_64: | |
2567 | case elfcpp::R_SPARC_HIX22: | |
2568 | case elfcpp::R_SPARC_LOX10: | |
2615994e | 2569 | case elfcpp::R_SPARC_H34: |
f5314dd5 DM |
2570 | case elfcpp::R_SPARC_H44: |
2571 | case elfcpp::R_SPARC_M44: | |
2572 | case elfcpp::R_SPARC_L44: | |
2573 | case elfcpp::R_SPARC_HH22: | |
2574 | case elfcpp::R_SPARC_HM10: | |
2575 | case elfcpp::R_SPARC_LM22: | |
2576 | case elfcpp::R_SPARC_HI22: | |
2577 | case elfcpp::R_SPARC_LO10: | |
2578 | case elfcpp::R_SPARC_OLO10: | |
2579 | case elfcpp::R_SPARC_UA32: | |
2580 | case elfcpp::R_SPARC_32: | |
2581 | case elfcpp::R_SPARC_UA16: | |
2582 | case elfcpp::R_SPARC_16: | |
2583 | case elfcpp::R_SPARC_11: | |
2584 | case elfcpp::R_SPARC_10: | |
2585 | case elfcpp::R_SPARC_8: | |
2586 | case elfcpp::R_SPARC_7: | |
2587 | case elfcpp::R_SPARC_6: | |
2588 | case elfcpp::R_SPARC_5: | |
2589 | { | |
2590 | // Make a PLT entry if necessary. | |
2591 | if (gsym->needs_plt_entry()) | |
2592 | { | |
2593 | target->make_plt_entry(symtab, layout, gsym); | |
2594 | // Since this is not a PC-relative relocation, we may be | |
2595 | // taking the address of a function. In that case we need to | |
2596 | // set the entry in the dynamic symbol table to the address of | |
2597 | // the PLT entry. | |
2598 | if (gsym->is_from_dynobj() && !parameters->options().shared()) | |
2599 | gsym->set_needs_dynsym_value(); | |
2600 | } | |
2601 | // Make a dynamic relocation if necessary. | |
95a2c8d6 | 2602 | if (gsym->needs_dynamic_reloc(Scan::get_reference_flags(r_type))) |
f5314dd5 | 2603 | { |
0da6fa6c DM |
2604 | unsigned int r_off = reloc.get_r_offset(); |
2605 | ||
2606 | // The assembler can sometimes emit unaligned relocations | |
2607 | // for dwarf2 cfi directives. | |
2608 | switch (r_type) | |
2609 | { | |
2610 | case elfcpp::R_SPARC_16: | |
2611 | if (r_off & 0x1) | |
2612 | orig_r_type = r_type = elfcpp::R_SPARC_UA16; | |
2613 | break; | |
2614 | case elfcpp::R_SPARC_32: | |
2615 | if (r_off & 0x3) | |
2616 | orig_r_type = r_type = elfcpp::R_SPARC_UA32; | |
2617 | break; | |
2618 | case elfcpp::R_SPARC_64: | |
2619 | if (r_off & 0x7) | |
2620 | orig_r_type = r_type = elfcpp::R_SPARC_UA64; | |
2621 | break; | |
2622 | case elfcpp::R_SPARC_UA16: | |
2623 | if (!(r_off & 0x1)) | |
2624 | orig_r_type = r_type = elfcpp::R_SPARC_16; | |
2625 | break; | |
2626 | case elfcpp::R_SPARC_UA32: | |
2627 | if (!(r_off & 0x3)) | |
2628 | orig_r_type = r_type = elfcpp::R_SPARC_32; | |
2629 | break; | |
2630 | case elfcpp::R_SPARC_UA64: | |
2631 | if (!(r_off & 0x7)) | |
2632 | orig_r_type = r_type = elfcpp::R_SPARC_64; | |
2633 | break; | |
2634 | } | |
2635 | ||
966d4097 | 2636 | if (gsym->may_need_copy_reloc()) |
f5314dd5 | 2637 | { |
12c0daef | 2638 | target->copy_reloc(symtab, layout, object, |
f5314dd5 DM |
2639 | data_shndx, output_section, gsym, reloc); |
2640 | } | |
8c2bf391 DM |
2641 | else if (((size == 64 && r_type == elfcpp::R_SPARC_64) |
2642 | || (size == 32 && r_type == elfcpp::R_SPARC_32)) | |
2643 | && gsym->type() == elfcpp::STT_GNU_IFUNC | |
2644 | && gsym->can_use_relative_reloc(false) | |
2645 | && !gsym->is_from_dynobj() | |
2646 | && !gsym->is_undefined() | |
2647 | && !gsym->is_preemptible()) | |
2648 | { | |
2649 | // Use an IRELATIVE reloc for a locally defined | |
2650 | // STT_GNU_IFUNC symbol. This makes a function | |
2651 | // address in a PIE executable match the address in a | |
2652 | // shared library that it links against. | |
2653 | Reloc_section* rela_dyn = | |
2654 | target->rela_ifunc_section(layout); | |
2655 | unsigned int r_type = elfcpp::R_SPARC_IRELATIVE; | |
2656 | rela_dyn->add_symbolless_global_addend(gsym, r_type, | |
2657 | output_section, object, | |
2658 | data_shndx, | |
2659 | reloc.get_r_offset(), | |
2660 | reloc.get_r_addend()); | |
2661 | } | |
f5314dd5 DM |
2662 | else if ((r_type == elfcpp::R_SPARC_32 |
2663 | || r_type == elfcpp::R_SPARC_64) | |
2664 | && gsym->can_use_relative_reloc(false)) | |
2665 | { | |
2666 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
2667 | rela_dyn->add_global_relative(gsym, elfcpp::R_SPARC_RELATIVE, | |
2668 | output_section, object, | |
2669 | data_shndx, reloc.get_r_offset(), | |
8c2bf391 | 2670 | reloc.get_r_addend(), is_ifunc); |
f5314dd5 DM |
2671 | } |
2672 | else | |
2673 | { | |
2674 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
2675 | ||
32b769e1 | 2676 | check_non_pic(object, r_type); |
0da6fa6c DM |
2677 | if (gsym->is_from_dynobj() |
2678 | || gsym->is_undefined() | |
2679 | || gsym->is_preemptible()) | |
2680 | rela_dyn->add_global(gsym, orig_r_type, output_section, | |
2681 | object, data_shndx, | |
2682 | reloc.get_r_offset(), | |
2683 | reloc.get_r_addend()); | |
2684 | else | |
2685 | rela_dyn->add_symbolless_global_addend(gsym, orig_r_type, | |
2686 | output_section, | |
2687 | object, data_shndx, | |
2688 | reloc.get_r_offset(), | |
2689 | reloc.get_r_addend()); | |
f5314dd5 DM |
2690 | } |
2691 | } | |
2692 | } | |
2693 | break; | |
2694 | ||
024c4466 DM |
2695 | case elfcpp::R_SPARC_GOTDATA_OP: |
2696 | case elfcpp::R_SPARC_GOTDATA_OP_HIX22: | |
2697 | case elfcpp::R_SPARC_GOTDATA_OP_LOX10: | |
f5314dd5 DM |
2698 | case elfcpp::R_SPARC_GOT10: |
2699 | case elfcpp::R_SPARC_GOT13: | |
2700 | case elfcpp::R_SPARC_GOT22: | |
2701 | { | |
2702 | // The symbol requires a GOT entry. | |
2703 | Output_data_got<size, big_endian>* got; | |
2704 | ||
2705 | got = target->got_section(symtab, layout); | |
2706 | if (gsym->final_value_is_known()) | |
8c2bf391 DM |
2707 | { |
2708 | // For a STT_GNU_IFUNC symbol we want the PLT address. | |
2709 | if (gsym->type() == elfcpp::STT_GNU_IFUNC) | |
2710 | got->add_global_plt(gsym, GOT_TYPE_STANDARD); | |
2711 | else | |
2712 | got->add_global(gsym, GOT_TYPE_STANDARD); | |
2713 | } | |
f5314dd5 DM |
2714 | else |
2715 | { | |
2716 | // If this symbol is not fully resolved, we need to add a | |
8c2bf391 DM |
2717 | // GOT entry with a dynamic relocation. |
2718 | bool is_ifunc = gsym->type() == elfcpp::STT_GNU_IFUNC; | |
2719 | ||
2720 | // Use a GLOB_DAT rather than a RELATIVE reloc if: | |
2721 | // | |
2722 | // 1) The symbol may be defined in some other module. | |
2723 | // | |
2724 | // 2) We are building a shared library and this is a | |
2725 | // protected symbol; using GLOB_DAT means that the dynamic | |
2726 | // linker can use the address of the PLT in the main | |
2727 | // executable when appropriate so that function address | |
2728 | // comparisons work. | |
2729 | // | |
2730 | // 3) This is a STT_GNU_IFUNC symbol in position dependent | |
2731 | // code, again so that function address comparisons work. | |
f5314dd5 DM |
2732 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); |
2733 | if (gsym->is_from_dynobj() | |
2734 | || gsym->is_undefined() | |
8c2bf391 DM |
2735 | || gsym->is_preemptible() |
2736 | || (gsym->visibility() == elfcpp::STV_PROTECTED | |
2737 | && parameters->options().shared()) | |
2738 | || (gsym->type() == elfcpp::STT_GNU_IFUNC | |
2739 | && parameters->options().output_is_position_independent() | |
2740 | && !gsym->is_forced_local())) | |
2741 | { | |
2742 | unsigned int r_type = elfcpp::R_SPARC_GLOB_DAT; | |
2743 | ||
2744 | // If this symbol is forced local, this relocation will | |
2745 | // not work properly. That's because ld.so on sparc | |
2746 | // (and 32-bit powerpc) expects st_value in the r_addend | |
2747 | // of relocations for STB_LOCAL symbols. Curiously the | |
2748 | // BFD linker does not promote global hidden symbols to be | |
2749 | // STB_LOCAL in the dynamic symbol table like Gold does. | |
2750 | gold_assert(!gsym->is_forced_local()); | |
2751 | got->add_global_with_rel(gsym, GOT_TYPE_STANDARD, rela_dyn, | |
2752 | r_type); | |
2753 | } | |
f5314dd5 DM |
2754 | else if (!gsym->has_got_offset(GOT_TYPE_STANDARD)) |
2755 | { | |
2756 | unsigned int off = got->add_constant(0); | |
2757 | ||
2758 | gsym->set_got_offset(GOT_TYPE_STANDARD, off); | |
8c2bf391 DM |
2759 | if (is_ifunc) |
2760 | { | |
2761 | // Tell the dynamic linker to use the PLT address | |
2762 | // when resolving relocations. | |
2763 | if (gsym->is_from_dynobj() | |
2764 | && !parameters->options().shared()) | |
2765 | gsym->set_needs_dynsym_value(); | |
2766 | } | |
f5314dd5 | 2767 | rela_dyn->add_global_relative(gsym, elfcpp::R_SPARC_RELATIVE, |
8c2bf391 | 2768 | got, off, 0, is_ifunc); |
f5314dd5 DM |
2769 | } |
2770 | } | |
2771 | } | |
2772 | break; | |
2773 | ||
2774 | // These are initial tls relocs, which are expected when | |
2775 | // linking. | |
2776 | case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic | |
2777 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
2778 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
2779 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
2780 | case elfcpp::R_SPARC_TLS_LDM_HI22: // Local-dynamic | |
2781 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
2782 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
2783 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
2784 | case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic | |
2785 | case elfcpp::R_SPARC_TLS_LDO_LOX10: | |
2786 | case elfcpp::R_SPARC_TLS_LDO_ADD: | |
2787 | case elfcpp::R_SPARC_TLS_LE_HIX22: | |
2788 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
2789 | case elfcpp::R_SPARC_TLS_IE_HI22: // Initial-exec | |
2790 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
2791 | case elfcpp::R_SPARC_TLS_IE_LD: | |
2792 | case elfcpp::R_SPARC_TLS_IE_LDX: | |
9efe6174 | 2793 | case elfcpp::R_SPARC_TLS_IE_ADD: |
f5314dd5 DM |
2794 | { |
2795 | const bool is_final = gsym->final_value_is_known(); | |
2796 | const tls::Tls_optimization optimized_type | |
2797 | = optimize_tls_reloc(is_final, r_type); | |
2798 | switch (r_type) | |
2799 | { | |
2800 | case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic | |
2801 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
2802 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
2803 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
2804 | if (optimized_type == tls::TLSOPT_NONE) | |
2805 | { | |
2806 | // Create a pair of GOT entries for the module index and | |
2807 | // dtv-relative offset. | |
2808 | Output_data_got<size, big_endian>* got | |
2809 | = target->got_section(symtab, layout); | |
83896202 ILT |
2810 | got->add_global_pair_with_rel(gsym, GOT_TYPE_TLS_PAIR, |
2811 | target->rela_dyn_section(layout), | |
2812 | (size == 64 | |
2813 | ? elfcpp::R_SPARC_TLS_DTPMOD64 | |
2814 | : elfcpp::R_SPARC_TLS_DTPMOD32), | |
2815 | (size == 64 | |
2816 | ? elfcpp::R_SPARC_TLS_DTPOFF64 | |
2817 | : elfcpp::R_SPARC_TLS_DTPOFF32)); | |
f5314dd5 DM |
2818 | |
2819 | // Emit R_SPARC_WPLT30 against "__tls_get_addr" | |
2820 | if (r_type == elfcpp::R_SPARC_TLS_GD_CALL) | |
2821 | generate_tls_call(symtab, layout, target); | |
2822 | } | |
2823 | else if (optimized_type == tls::TLSOPT_TO_IE) | |
2824 | { | |
2825 | // Create a GOT entry for the tp-relative offset. | |
2826 | Output_data_got<size, big_endian>* got | |
2827 | = target->got_section(symtab, layout); | |
83896202 ILT |
2828 | got->add_global_with_rel(gsym, GOT_TYPE_TLS_OFFSET, |
2829 | target->rela_dyn_section(layout), | |
2830 | (size == 64 ? | |
2831 | elfcpp::R_SPARC_TLS_TPOFF64 : | |
2832 | elfcpp::R_SPARC_TLS_TPOFF32)); | |
f5314dd5 DM |
2833 | } |
2834 | else if (optimized_type != tls::TLSOPT_TO_LE) | |
2835 | unsupported_reloc_global(object, r_type, gsym); | |
2836 | break; | |
2837 | ||
2838 | case elfcpp::R_SPARC_TLS_LDM_HI22: // Local-dynamic | |
2839 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
2840 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
2841 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
2842 | if (optimized_type == tls::TLSOPT_NONE) | |
2843 | { | |
2844 | // Create a GOT entry for the module index. | |
2845 | target->got_mod_index_entry(symtab, layout, object); | |
2846 | ||
2847 | if (r_type == elfcpp::R_SPARC_TLS_LDM_CALL) | |
2848 | generate_tls_call(symtab, layout, target); | |
2849 | } | |
2850 | else if (optimized_type != tls::TLSOPT_TO_LE) | |
2851 | unsupported_reloc_global(object, r_type, gsym); | |
2852 | break; | |
2853 | ||
2854 | case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic | |
2855 | case elfcpp::R_SPARC_TLS_LDO_LOX10: | |
2856 | case elfcpp::R_SPARC_TLS_LDO_ADD: | |
2857 | break; | |
2858 | ||
2859 | case elfcpp::R_SPARC_TLS_LE_HIX22: | |
2860 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
2861 | layout->set_has_static_tls(); | |
2862 | if (parameters->options().shared()) | |
2863 | { | |
2864 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); | |
0da6fa6c DM |
2865 | rela_dyn->add_symbolless_global_addend(gsym, orig_r_type, |
2866 | output_section, object, | |
2867 | data_shndx, reloc.get_r_offset(), | |
2868 | 0); | |
f5314dd5 DM |
2869 | } |
2870 | break; | |
2871 | ||
2872 | case elfcpp::R_SPARC_TLS_IE_HI22: // Initial-exec | |
2873 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
2874 | case elfcpp::R_SPARC_TLS_IE_LD: | |
2875 | case elfcpp::R_SPARC_TLS_IE_LDX: | |
9efe6174 | 2876 | case elfcpp::R_SPARC_TLS_IE_ADD: |
f5314dd5 DM |
2877 | layout->set_has_static_tls(); |
2878 | if (optimized_type == tls::TLSOPT_NONE) | |
2879 | { | |
2880 | // Create a GOT entry for the tp-relative offset. | |
2881 | Output_data_got<size, big_endian>* got | |
2882 | = target->got_section(symtab, layout); | |
83896202 ILT |
2883 | got->add_global_with_rel(gsym, GOT_TYPE_TLS_OFFSET, |
2884 | target->rela_dyn_section(layout), | |
2885 | (size == 64 | |
2886 | ? elfcpp::R_SPARC_TLS_TPOFF64 | |
2887 | : elfcpp::R_SPARC_TLS_TPOFF32)); | |
f5314dd5 DM |
2888 | } |
2889 | else if (optimized_type != tls::TLSOPT_TO_LE) | |
2890 | unsupported_reloc_global(object, r_type, gsym); | |
2891 | break; | |
2892 | } | |
2893 | } | |
2894 | break; | |
2895 | ||
2896 | // These are relocations which should only be seen by the | |
2897 | // dynamic linker, and should never be seen here. | |
2898 | case elfcpp::R_SPARC_COPY: | |
2899 | case elfcpp::R_SPARC_GLOB_DAT: | |
2900 | case elfcpp::R_SPARC_JMP_SLOT: | |
8c2bf391 | 2901 | case elfcpp::R_SPARC_JMP_IREL: |
f5314dd5 | 2902 | case elfcpp::R_SPARC_RELATIVE: |
8c2bf391 | 2903 | case elfcpp::R_SPARC_IRELATIVE: |
f5314dd5 DM |
2904 | case elfcpp::R_SPARC_TLS_DTPMOD64: |
2905 | case elfcpp::R_SPARC_TLS_DTPMOD32: | |
2906 | case elfcpp::R_SPARC_TLS_DTPOFF64: | |
2907 | case elfcpp::R_SPARC_TLS_DTPOFF32: | |
2908 | case elfcpp::R_SPARC_TLS_TPOFF64: | |
2909 | case elfcpp::R_SPARC_TLS_TPOFF32: | |
2910 | gold_error(_("%s: unexpected reloc %u in object file"), | |
2911 | object->name().c_str(), r_type); | |
2912 | break; | |
2913 | ||
2914 | default: | |
2915 | unsupported_reloc_global(object, r_type, gsym); | |
2916 | break; | |
2917 | } | |
2918 | } | |
2919 | ||
6d03d481 ST |
2920 | // Process relocations for gc. |
2921 | ||
2922 | template<int size, bool big_endian> | |
2923 | void | |
2924 | Target_sparc<size, big_endian>::gc_process_relocs( | |
6d03d481 ST |
2925 | Symbol_table* symtab, |
2926 | Layout* layout, | |
6fa2a40b | 2927 | Sized_relobj_file<size, big_endian>* object, |
6d03d481 ST |
2928 | unsigned int data_shndx, |
2929 | unsigned int, | |
2930 | const unsigned char* prelocs, | |
2931 | size_t reloc_count, | |
2932 | Output_section* output_section, | |
2933 | bool needs_special_offset_handling, | |
2934 | size_t local_symbol_count, | |
2935 | const unsigned char* plocal_symbols) | |
2936 | { | |
2937 | typedef Target_sparc<size, big_endian> Sparc; | |
2ea97941 | 2938 | typedef typename Target_sparc<size, big_endian>::Scan Scan; |
6d03d481 | 2939 | |
41cbeecc | 2940 | gold::gc_process_relocs<size, big_endian, Sparc, elfcpp::SHT_RELA, Scan, |
3ff2ccb0 | 2941 | typename Target_sparc::Relocatable_size_for_reloc>( |
6d03d481 ST |
2942 | symtab, |
2943 | layout, | |
2944 | this, | |
2945 | object, | |
2946 | data_shndx, | |
2947 | prelocs, | |
2948 | reloc_count, | |
2949 | output_section, | |
2950 | needs_special_offset_handling, | |
2951 | local_symbol_count, | |
2952 | plocal_symbols); | |
2953 | } | |
2954 | ||
f5314dd5 DM |
2955 | // Scan relocations for a section. |
2956 | ||
2957 | template<int size, bool big_endian> | |
2958 | void | |
2959 | Target_sparc<size, big_endian>::scan_relocs( | |
f5314dd5 DM |
2960 | Symbol_table* symtab, |
2961 | Layout* layout, | |
6fa2a40b | 2962 | Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
2963 | unsigned int data_shndx, |
2964 | unsigned int sh_type, | |
2965 | const unsigned char* prelocs, | |
2966 | size_t reloc_count, | |
2967 | Output_section* output_section, | |
2968 | bool needs_special_offset_handling, | |
2969 | size_t local_symbol_count, | |
2970 | const unsigned char* plocal_symbols) | |
2971 | { | |
2972 | typedef Target_sparc<size, big_endian> Sparc; | |
2ea97941 | 2973 | typedef typename Target_sparc<size, big_endian>::Scan Scan; |
f5314dd5 DM |
2974 | |
2975 | if (sh_type == elfcpp::SHT_REL) | |
2976 | { | |
2977 | gold_error(_("%s: unsupported REL reloc section"), | |
2978 | object->name().c_str()); | |
2979 | return; | |
2980 | } | |
2981 | ||
2ea97941 | 2982 | gold::scan_relocs<size, big_endian, Sparc, elfcpp::SHT_RELA, Scan>( |
f5314dd5 DM |
2983 | symtab, |
2984 | layout, | |
2985 | this, | |
2986 | object, | |
2987 | data_shndx, | |
2988 | prelocs, | |
2989 | reloc_count, | |
2990 | output_section, | |
2991 | needs_special_offset_handling, | |
2992 | local_symbol_count, | |
2993 | plocal_symbols); | |
2994 | } | |
2995 | ||
2996 | // Finalize the sections. | |
2997 | ||
2998 | template<int size, bool big_endian> | |
2999 | void | |
d5b40221 DK |
3000 | Target_sparc<size, big_endian>::do_finalize_sections( |
3001 | Layout* layout, | |
f59f41f3 | 3002 | const Input_objects*, |
8c2bf391 | 3003 | Symbol_table* symtab) |
f5314dd5 | 3004 | { |
8c2bf391 DM |
3005 | if (this->plt_) |
3006 | this->plt_->emit_pending_ifunc_relocs(); | |
3007 | ||
f5314dd5 | 3008 | // Fill in some more dynamic tags. |
ea715a34 ILT |
3009 | const Reloc_section* rel_plt = (this->plt_ == NULL |
3010 | ? NULL | |
3011 | : this->plt_->rel_plt()); | |
3012 | layout->add_target_dynamic_tags(false, this->plt_, rel_plt, | |
612a8d3d | 3013 | this->rela_dyn_, true, true); |
f5314dd5 DM |
3014 | |
3015 | // Emit any relocs we saved in an attempt to avoid generating COPY | |
3016 | // relocs. | |
12c0daef ILT |
3017 | if (this->copy_relocs_.any_saved_relocs()) |
3018 | this->copy_relocs_.emit(this->rela_dyn_section(layout)); | |
8c2bf391 DM |
3019 | |
3020 | if (parameters->doing_static_link() | |
3021 | && (this->plt_ == NULL || !this->plt_->has_ifunc_section())) | |
3022 | { | |
3023 | // If linking statically, make sure that the __rela_iplt symbols | |
3024 | // were defined if necessary, even if we didn't create a PLT. | |
3025 | static const Define_symbol_in_segment syms[] = | |
3026 | { | |
3027 | { | |
3028 | "__rela_iplt_start", // name | |
3029 | elfcpp::PT_LOAD, // segment_type | |
3030 | elfcpp::PF_W, // segment_flags_set | |
3031 | elfcpp::PF(0), // segment_flags_clear | |
3032 | 0, // value | |
3033 | 0, // size | |
3034 | elfcpp::STT_NOTYPE, // type | |
3035 | elfcpp::STB_GLOBAL, // binding | |
3036 | elfcpp::STV_HIDDEN, // visibility | |
3037 | 0, // nonvis | |
3038 | Symbol::SEGMENT_START, // offset_from_base | |
3039 | true // only_if_ref | |
3040 | }, | |
3041 | { | |
3042 | "__rela_iplt_end", // name | |
3043 | elfcpp::PT_LOAD, // segment_type | |
3044 | elfcpp::PF_W, // segment_flags_set | |
3045 | elfcpp::PF(0), // segment_flags_clear | |
3046 | 0, // value | |
3047 | 0, // size | |
3048 | elfcpp::STT_NOTYPE, // type | |
3049 | elfcpp::STB_GLOBAL, // binding | |
3050 | elfcpp::STV_HIDDEN, // visibility | |
3051 | 0, // nonvis | |
3052 | Symbol::SEGMENT_START, // offset_from_base | |
3053 | true // only_if_ref | |
3054 | } | |
3055 | }; | |
3056 | ||
3057 | symtab->define_symbols(layout, 2, syms, | |
3058 | layout->script_options()->saw_sections_clause()); | |
3059 | } | |
f5314dd5 DM |
3060 | } |
3061 | ||
3062 | // Perform a relocation. | |
3063 | ||
3064 | template<int size, bool big_endian> | |
3065 | inline bool | |
3066 | Target_sparc<size, big_endian>::Relocate::relocate( | |
3067 | const Relocate_info<size, big_endian>* relinfo, | |
3068 | Target_sparc* target, | |
031cdbed | 3069 | Output_section*, |
f5314dd5 DM |
3070 | size_t relnum, |
3071 | const elfcpp::Rela<size, big_endian>& rela, | |
3072 | unsigned int r_type, | |
3073 | const Sized_symbol<size>* gsym, | |
3074 | const Symbol_value<size>* psymval, | |
3075 | unsigned char* view, | |
3076 | typename elfcpp::Elf_types<size>::Elf_Addr address, | |
3077 | section_size_type view_size) | |
3078 | { | |
3079 | r_type &= 0xff; | |
3080 | ||
3081 | if (this->ignore_gd_add_) | |
3082 | { | |
3083 | if (r_type != elfcpp::R_SPARC_TLS_GD_ADD) | |
3084 | gold_error_at_location(relinfo, relnum, rela.get_r_offset(), | |
3085 | _("missing expected TLS relocation")); | |
3086 | else | |
3087 | { | |
3088 | this->ignore_gd_add_ = false; | |
3089 | return false; | |
3090 | } | |
3091 | } | |
abd242a9 DM |
3092 | if (this->reloc_adjust_addr_ == view) |
3093 | view -= 4; | |
f5314dd5 DM |
3094 | |
3095 | typedef Sparc_relocate_functions<size, big_endian> Reloc; | |
8c2bf391 | 3096 | const Sized_relobj_file<size, big_endian>* object = relinfo->object; |
f5314dd5 DM |
3097 | |
3098 | // Pick the value to use for symbols defined in shared objects. | |
3099 | Symbol_value<size> symval; | |
3100 | if (gsym != NULL | |
95a2c8d6 | 3101 | && gsym->use_plt_offset(Scan::get_reference_flags(r_type))) |
f5314dd5 | 3102 | { |
2ea97941 | 3103 | elfcpp::Elf_Xword value; |
f5314dd5 | 3104 | |
8c2bf391 | 3105 | value = target->plt_address_for_global(gsym) + gsym->plt_offset(); |
f5314dd5 | 3106 | |
2ea97941 | 3107 | symval.set_output_value(value); |
f5314dd5 DM |
3108 | |
3109 | psymval = &symval; | |
3110 | } | |
8c2bf391 DM |
3111 | else if (gsym == NULL && psymval->is_ifunc_symbol()) |
3112 | { | |
3113 | unsigned int r_sym = elfcpp::elf_r_sym<size>(rela.get_r_info()); | |
3114 | if (object->local_has_plt_offset(r_sym)) | |
3115 | { | |
3116 | symval.set_output_value(target->plt_address_for_local(object, r_sym) | |
3117 | + object->local_plt_offset(r_sym)); | |
3118 | psymval = &symval; | |
3119 | } | |
3120 | } | |
f5314dd5 | 3121 | |
f5314dd5 DM |
3122 | const elfcpp::Elf_Xword addend = rela.get_r_addend(); |
3123 | ||
3124 | // Get the GOT offset if needed. Unlike i386 and x86_64, our GOT | |
3125 | // pointer points to the beginning, not the end, of the table. | |
3126 | // So we just use the plain offset. | |
f5314dd5 DM |
3127 | unsigned int got_offset = 0; |
3128 | switch (r_type) | |
3129 | { | |
024c4466 DM |
3130 | case elfcpp::R_SPARC_GOTDATA_OP: |
3131 | case elfcpp::R_SPARC_GOTDATA_OP_HIX22: | |
3132 | case elfcpp::R_SPARC_GOTDATA_OP_LOX10: | |
f5314dd5 DM |
3133 | case elfcpp::R_SPARC_GOT10: |
3134 | case elfcpp::R_SPARC_GOT13: | |
3135 | case elfcpp::R_SPARC_GOT22: | |
3136 | if (gsym != NULL) | |
3137 | { | |
3138 | gold_assert(gsym->has_got_offset(GOT_TYPE_STANDARD)); | |
3139 | got_offset = gsym->got_offset(GOT_TYPE_STANDARD); | |
3140 | } | |
3141 | else | |
3142 | { | |
3143 | unsigned int r_sym = elfcpp::elf_r_sym<size>(rela.get_r_info()); | |
3144 | gold_assert(object->local_has_got_offset(r_sym, GOT_TYPE_STANDARD)); | |
3145 | got_offset = object->local_got_offset(r_sym, GOT_TYPE_STANDARD); | |
3146 | } | |
f5314dd5 DM |
3147 | break; |
3148 | ||
3149 | default: | |
3150 | break; | |
3151 | } | |
3152 | ||
3153 | switch (r_type) | |
3154 | { | |
3155 | case elfcpp::R_SPARC_NONE: | |
3156 | case elfcpp::R_SPARC_REGISTER: | |
3157 | case elfcpp::R_SPARC_GNU_VTINHERIT: | |
3158 | case elfcpp::R_SPARC_GNU_VTENTRY: | |
3159 | break; | |
3160 | ||
3161 | case elfcpp::R_SPARC_8: | |
3162 | Relocate_functions<size, big_endian>::rela8(view, object, | |
3163 | psymval, addend); | |
3164 | break; | |
3165 | ||
3166 | case elfcpp::R_SPARC_16: | |
705b5121 DM |
3167 | if (rela.get_r_offset() & 0x1) |
3168 | { | |
3169 | // The assembler can sometimes emit unaligned relocations | |
3170 | // for dwarf2 cfi directives. | |
3171 | Reloc::ua16(view, object, psymval, addend); | |
3172 | } | |
3173 | else | |
3174 | Relocate_functions<size, big_endian>::rela16(view, object, | |
3175 | psymval, addend); | |
f5314dd5 DM |
3176 | break; |
3177 | ||
3178 | case elfcpp::R_SPARC_32: | |
3179 | if (!parameters->options().output_is_position_independent()) | |
705b5121 DM |
3180 | { |
3181 | if (rela.get_r_offset() & 0x3) | |
3182 | { | |
3183 | // The assembler can sometimes emit unaligned relocations | |
3184 | // for dwarf2 cfi directives. | |
3185 | Reloc::ua32(view, object, psymval, addend); | |
3186 | } | |
3187 | else | |
3188 | Relocate_functions<size, big_endian>::rela32(view, object, | |
3189 | psymval, addend); | |
3190 | } | |
f5314dd5 DM |
3191 | break; |
3192 | ||
3193 | case elfcpp::R_SPARC_DISP8: | |
3194 | Reloc::disp8(view, object, psymval, addend, address); | |
3195 | break; | |
3196 | ||
3197 | case elfcpp::R_SPARC_DISP16: | |
3198 | Reloc::disp16(view, object, psymval, addend, address); | |
3199 | break; | |
3200 | ||
3201 | case elfcpp::R_SPARC_DISP32: | |
3202 | Reloc::disp32(view, object, psymval, addend, address); | |
3203 | break; | |
3204 | ||
3205 | case elfcpp::R_SPARC_DISP64: | |
3206 | Reloc::disp64(view, object, psymval, addend, address); | |
3207 | break; | |
3208 | ||
3209 | case elfcpp::R_SPARC_WDISP30: | |
3210 | case elfcpp::R_SPARC_WPLT30: | |
3211 | Reloc::wdisp30(view, object, psymval, addend, address); | |
3212 | break; | |
3213 | ||
3214 | case elfcpp::R_SPARC_WDISP22: | |
3215 | Reloc::wdisp22(view, object, psymval, addend, address); | |
3216 | break; | |
3217 | ||
3218 | case elfcpp::R_SPARC_WDISP19: | |
3219 | Reloc::wdisp19(view, object, psymval, addend, address); | |
3220 | break; | |
3221 | ||
3222 | case elfcpp::R_SPARC_WDISP16: | |
3223 | Reloc::wdisp16(view, object, psymval, addend, address); | |
3224 | break; | |
3225 | ||
2615994e DM |
3226 | case elfcpp::R_SPARC_WDISP10: |
3227 | Reloc::wdisp10(view, object, psymval, addend, address); | |
3228 | break; | |
3229 | ||
f5314dd5 DM |
3230 | case elfcpp::R_SPARC_HI22: |
3231 | Reloc::hi22(view, object, psymval, addend); | |
3232 | break; | |
3233 | ||
3234 | case elfcpp::R_SPARC_22: | |
3235 | Reloc::rela32_22(view, object, psymval, addend); | |
3236 | break; | |
3237 | ||
3238 | case elfcpp::R_SPARC_13: | |
3239 | Reloc::rela32_13(view, object, psymval, addend); | |
3240 | break; | |
3241 | ||
3242 | case elfcpp::R_SPARC_LO10: | |
3243 | Reloc::lo10(view, object, psymval, addend); | |
3244 | break; | |
3245 | ||
3246 | case elfcpp::R_SPARC_GOT10: | |
3247 | Reloc::lo10(view, got_offset, addend); | |
3248 | break; | |
3249 | ||
024c4466 DM |
3250 | case elfcpp::R_SPARC_GOTDATA_OP: |
3251 | break; | |
3252 | ||
3253 | case elfcpp::R_SPARC_GOTDATA_OP_LOX10: | |
f5314dd5 DM |
3254 | case elfcpp::R_SPARC_GOT13: |
3255 | Reloc::rela32_13(view, got_offset, addend); | |
3256 | break; | |
3257 | ||
024c4466 | 3258 | case elfcpp::R_SPARC_GOTDATA_OP_HIX22: |
f5314dd5 DM |
3259 | case elfcpp::R_SPARC_GOT22: |
3260 | Reloc::hi22(view, got_offset, addend); | |
3261 | break; | |
3262 | ||
3263 | case elfcpp::R_SPARC_PC10: | |
3264 | Reloc::pc10(view, object, psymval, addend, address); | |
3265 | break; | |
3266 | ||
3267 | case elfcpp::R_SPARC_PC22: | |
3268 | Reloc::pc22(view, object, psymval, addend, address); | |
3269 | break; | |
3270 | ||
3271 | case elfcpp::R_SPARC_TLS_DTPOFF32: | |
3272 | case elfcpp::R_SPARC_UA32: | |
3273 | Reloc::ua32(view, object, psymval, addend); | |
3274 | break; | |
3275 | ||
3276 | case elfcpp::R_SPARC_PLT64: | |
3277 | Relocate_functions<size, big_endian>::rela64(view, object, | |
3278 | psymval, addend); | |
3279 | break; | |
3280 | ||
3281 | case elfcpp::R_SPARC_PLT32: | |
3282 | Relocate_functions<size, big_endian>::rela32(view, object, | |
3283 | psymval, addend); | |
3284 | break; | |
3285 | ||
3286 | case elfcpp::R_SPARC_HIPLT22: | |
3287 | Reloc::hi22(view, object, psymval, addend); | |
3288 | break; | |
3289 | ||
3290 | case elfcpp::R_SPARC_LOPLT10: | |
3291 | Reloc::lo10(view, object, psymval, addend); | |
3292 | break; | |
3293 | ||
3294 | case elfcpp::R_SPARC_PCPLT32: | |
3295 | Reloc::disp32(view, object, psymval, addend, address); | |
3296 | break; | |
3297 | ||
3298 | case elfcpp::R_SPARC_PCPLT22: | |
3299 | Reloc::pcplt22(view, object, psymval, addend, address); | |
3300 | break; | |
3301 | ||
3302 | case elfcpp::R_SPARC_PCPLT10: | |
3303 | Reloc::lo10(view, object, psymval, addend, address); | |
3304 | break; | |
3305 | ||
3306 | case elfcpp::R_SPARC_64: | |
3307 | if (!parameters->options().output_is_position_independent()) | |
705b5121 DM |
3308 | { |
3309 | if (rela.get_r_offset() & 0x7) | |
3310 | { | |
3311 | // The assembler can sometimes emit unaligned relocations | |
3312 | // for dwarf2 cfi directives. | |
3313 | Reloc::ua64(view, object, psymval, addend); | |
3314 | } | |
3315 | else | |
3316 | Relocate_functions<size, big_endian>::rela64(view, object, | |
3317 | psymval, addend); | |
3318 | } | |
f5314dd5 DM |
3319 | break; |
3320 | ||
3321 | case elfcpp::R_SPARC_OLO10: | |
3322 | { | |
3323 | unsigned int addend2 = rela.get_r_info() & 0xffffffff; | |
3324 | addend2 = ((addend2 >> 8) ^ 0x800000) - 0x800000; | |
3325 | Reloc::olo10(view, object, psymval, addend, addend2); | |
3326 | } | |
3327 | break; | |
3328 | ||
3329 | case elfcpp::R_SPARC_HH22: | |
3330 | Reloc::hh22(view, object, psymval, addend); | |
3331 | break; | |
3332 | ||
3333 | case elfcpp::R_SPARC_PC_HH22: | |
3334 | Reloc::pc_hh22(view, object, psymval, addend, address); | |
3335 | break; | |
3336 | ||
3337 | case elfcpp::R_SPARC_HM10: | |
3338 | Reloc::hm10(view, object, psymval, addend); | |
3339 | break; | |
3340 | ||
3341 | case elfcpp::R_SPARC_PC_HM10: | |
3342 | Reloc::pc_hm10(view, object, psymval, addend, address); | |
3343 | break; | |
3344 | ||
3345 | case elfcpp::R_SPARC_LM22: | |
3346 | Reloc::hi22(view, object, psymval, addend); | |
3347 | break; | |
3348 | ||
3349 | case elfcpp::R_SPARC_PC_LM22: | |
3350 | Reloc::pcplt22(view, object, psymval, addend, address); | |
3351 | break; | |
3352 | ||
3353 | case elfcpp::R_SPARC_11: | |
3354 | Reloc::rela32_11(view, object, psymval, addend); | |
3355 | break; | |
3356 | ||
3357 | case elfcpp::R_SPARC_10: | |
3358 | Reloc::rela32_10(view, object, psymval, addend); | |
3359 | break; | |
3360 | ||
3361 | case elfcpp::R_SPARC_7: | |
3362 | Reloc::rela32_7(view, object, psymval, addend); | |
3363 | break; | |
3364 | ||
3365 | case elfcpp::R_SPARC_6: | |
3366 | Reloc::rela32_6(view, object, psymval, addend); | |
3367 | break; | |
3368 | ||
3369 | case elfcpp::R_SPARC_5: | |
3370 | Reloc::rela32_5(view, object, psymval, addend); | |
3371 | break; | |
3372 | ||
3373 | case elfcpp::R_SPARC_HIX22: | |
3374 | Reloc::hix22(view, object, psymval, addend); | |
3375 | break; | |
3376 | ||
3377 | case elfcpp::R_SPARC_LOX10: | |
3378 | Reloc::lox10(view, object, psymval, addend); | |
3379 | break; | |
3380 | ||
2615994e DM |
3381 | case elfcpp::R_SPARC_H34: |
3382 | Reloc::h34(view, object, psymval, addend); | |
3383 | break; | |
3384 | ||
f5314dd5 DM |
3385 | case elfcpp::R_SPARC_H44: |
3386 | Reloc::h44(view, object, psymval, addend); | |
3387 | break; | |
3388 | ||
3389 | case elfcpp::R_SPARC_M44: | |
3390 | Reloc::m44(view, object, psymval, addend); | |
3391 | break; | |
3392 | ||
3393 | case elfcpp::R_SPARC_L44: | |
3394 | Reloc::l44(view, object, psymval, addend); | |
3395 | break; | |
3396 | ||
3397 | case elfcpp::R_SPARC_TLS_DTPOFF64: | |
3398 | case elfcpp::R_SPARC_UA64: | |
3399 | Reloc::ua64(view, object, psymval, addend); | |
3400 | break; | |
3401 | ||
3402 | case elfcpp::R_SPARC_UA16: | |
3403 | Reloc::ua16(view, object, psymval, addend); | |
3404 | break; | |
3405 | ||
3406 | case elfcpp::R_SPARC_TLS_GD_HI22: | |
3407 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
3408 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
3409 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
3410 | case elfcpp::R_SPARC_TLS_LDM_HI22: | |
3411 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
3412 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
3413 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
3414 | case elfcpp::R_SPARC_TLS_LDO_HIX22: | |
3415 | case elfcpp::R_SPARC_TLS_LDO_LOX10: | |
3416 | case elfcpp::R_SPARC_TLS_LDO_ADD: | |
3417 | case elfcpp::R_SPARC_TLS_IE_HI22: | |
3418 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
3419 | case elfcpp::R_SPARC_TLS_IE_LD: | |
3420 | case elfcpp::R_SPARC_TLS_IE_LDX: | |
9efe6174 | 3421 | case elfcpp::R_SPARC_TLS_IE_ADD: |
f5314dd5 DM |
3422 | case elfcpp::R_SPARC_TLS_LE_HIX22: |
3423 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
3424 | this->relocate_tls(relinfo, target, relnum, rela, | |
3425 | r_type, gsym, psymval, view, | |
3426 | address, view_size); | |
3427 | break; | |
3428 | ||
3429 | case elfcpp::R_SPARC_COPY: | |
3430 | case elfcpp::R_SPARC_GLOB_DAT: | |
3431 | case elfcpp::R_SPARC_JMP_SLOT: | |
8c2bf391 | 3432 | case elfcpp::R_SPARC_JMP_IREL: |
f5314dd5 | 3433 | case elfcpp::R_SPARC_RELATIVE: |
8c2bf391 | 3434 | case elfcpp::R_SPARC_IRELATIVE: |
f5314dd5 DM |
3435 | // These are outstanding tls relocs, which are unexpected when |
3436 | // linking. | |
3437 | case elfcpp::R_SPARC_TLS_DTPMOD64: | |
3438 | case elfcpp::R_SPARC_TLS_DTPMOD32: | |
3439 | case elfcpp::R_SPARC_TLS_TPOFF64: | |
3440 | case elfcpp::R_SPARC_TLS_TPOFF32: | |
3441 | gold_error_at_location(relinfo, relnum, rela.get_r_offset(), | |
3442 | _("unexpected reloc %u in object file"), | |
3443 | r_type); | |
3444 | break; | |
3445 | ||
3446 | default: | |
3447 | gold_error_at_location(relinfo, relnum, rela.get_r_offset(), | |
3448 | _("unsupported reloc %u"), | |
3449 | r_type); | |
3450 | break; | |
3451 | } | |
3452 | ||
3453 | return true; | |
3454 | } | |
3455 | ||
3456 | // Perform a TLS relocation. | |
3457 | ||
3458 | template<int size, bool big_endian> | |
3459 | inline void | |
3460 | Target_sparc<size, big_endian>::Relocate::relocate_tls( | |
3461 | const Relocate_info<size, big_endian>* relinfo, | |
3462 | Target_sparc<size, big_endian>* target, | |
3463 | size_t relnum, | |
3464 | const elfcpp::Rela<size, big_endian>& rela, | |
3465 | unsigned int r_type, | |
3466 | const Sized_symbol<size>* gsym, | |
3467 | const Symbol_value<size>* psymval, | |
3468 | unsigned char* view, | |
3469 | typename elfcpp::Elf_types<size>::Elf_Addr address, | |
3470 | section_size_type) | |
3471 | { | |
3472 | Output_segment* tls_segment = relinfo->layout->tls_segment(); | |
3473 | typedef Sparc_relocate_functions<size, big_endian> Reloc; | |
6fa2a40b | 3474 | const Sized_relobj_file<size, big_endian>* object = relinfo->object; |
f5314dd5 DM |
3475 | typedef typename elfcpp::Swap<32, true>::Valtype Insntype; |
3476 | ||
3477 | const elfcpp::Elf_Xword addend = rela.get_r_addend(); | |
2ea97941 | 3478 | typename elfcpp::Elf_types<size>::Elf_Addr value = psymval->value(object, 0); |
f5314dd5 DM |
3479 | |
3480 | const bool is_final = | |
3481 | (gsym == NULL | |
3482 | ? !parameters->options().output_is_position_independent() | |
3483 | : gsym->final_value_is_known()); | |
3484 | const tls::Tls_optimization optimized_type | |
3485 | = optimize_tls_reloc(is_final, r_type); | |
3486 | ||
3487 | switch (r_type) | |
3488 | { | |
3489 | case elfcpp::R_SPARC_TLS_GD_HI22: | |
3490 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
3491 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
3492 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
3493 | if (optimized_type == tls::TLSOPT_TO_LE) | |
3494 | { | |
3495 | Insntype* wv = reinterpret_cast<Insntype*>(view); | |
3496 | Insntype val; | |
3497 | ||
2ea97941 | 3498 | value -= tls_segment->memsz(); |
f5314dd5 DM |
3499 | |
3500 | switch (r_type) | |
3501 | { | |
3502 | case elfcpp::R_SPARC_TLS_GD_HI22: | |
3503 | // TLS_GD_HI22 --> TLS_LE_HIX22 | |
2ea97941 | 3504 | Reloc::hix22(view, value, addend); |
f5314dd5 DM |
3505 | break; |
3506 | ||
3507 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
3508 | // TLS_GD_LO10 --> TLS_LE_LOX10 | |
2ea97941 | 3509 | Reloc::lox10(view, value, addend); |
f5314dd5 DM |
3510 | break; |
3511 | ||
3512 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
3513 | // add %reg1, %reg2, %reg3 --> mov %g7, %reg2, %reg3 | |
3514 | val = elfcpp::Swap<32, true>::readval(wv); | |
3515 | val = (val & ~0x7c000) | 0x1c000; | |
3516 | elfcpp::Swap<32, true>::writeval(wv, val); | |
3517 | break; | |
3518 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
3519 | // call __tls_get_addr --> nop | |
3520 | elfcpp::Swap<32, true>::writeval(wv, sparc_nop); | |
3521 | break; | |
3522 | } | |
3523 | break; | |
3524 | } | |
3525 | else | |
3526 | { | |
3527 | unsigned int got_type = (optimized_type == tls::TLSOPT_TO_IE | |
3528 | ? GOT_TYPE_TLS_OFFSET | |
3529 | : GOT_TYPE_TLS_PAIR); | |
3530 | if (gsym != NULL) | |
3531 | { | |
3532 | gold_assert(gsym->has_got_offset(got_type)); | |
2ea97941 | 3533 | value = gsym->got_offset(got_type); |
f5314dd5 DM |
3534 | } |
3535 | else | |
3536 | { | |
3537 | unsigned int r_sym = elfcpp::elf_r_sym<size>(rela.get_r_info()); | |
3538 | gold_assert(object->local_has_got_offset(r_sym, got_type)); | |
2ea97941 | 3539 | value = object->local_got_offset(r_sym, got_type); |
f5314dd5 DM |
3540 | } |
3541 | if (optimized_type == tls::TLSOPT_TO_IE) | |
3542 | { | |
3543 | Insntype* wv = reinterpret_cast<Insntype*>(view); | |
3544 | Insntype val; | |
3545 | ||
3546 | switch (r_type) | |
3547 | { | |
3548 | case elfcpp::R_SPARC_TLS_GD_HI22: | |
3549 | // TLS_GD_HI22 --> TLS_IE_HI22 | |
2ea97941 | 3550 | Reloc::hi22(view, value, addend); |
f5314dd5 DM |
3551 | break; |
3552 | ||
3553 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
3554 | // TLS_GD_LO10 --> TLS_IE_LO10 | |
2ea97941 | 3555 | Reloc::lo10(view, value, addend); |
f5314dd5 DM |
3556 | break; |
3557 | ||
3558 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
3559 | // add %reg1, %reg2, %reg3 --> ld [%reg1 + %reg2], %reg3 | |
3560 | val = elfcpp::Swap<32, true>::readval(wv); | |
3561 | ||
3562 | if (size == 64) | |
3563 | val |= 0xc0580000; | |
3564 | else | |
3565 | val |= 0xc0000000; | |
3566 | ||
3567 | elfcpp::Swap<32, true>::writeval(wv, val); | |
3568 | break; | |
3569 | ||
3570 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
3571 | // The compiler can put the TLS_GD_ADD instruction | |
3572 | // into the delay slot of the call. If so, we need | |
3573 | // to transpose the two instructions so that the | |
9b547ce6 | 3574 | // new sequence works properly. |
f5314dd5 DM |
3575 | // |
3576 | // The test we use is if the instruction in the | |
3577 | // delay slot is an add with destination register | |
3578 | // equal to %o0 | |
3579 | val = elfcpp::Swap<32, true>::readval(wv + 1); | |
3580 | if ((val & 0x81f80000) == 0x80000000 | |
3581 | && ((val >> 25) & 0x1f) == 0x8) | |
3582 | { | |
3583 | if (size == 64) | |
3584 | val |= 0xc0580000; | |
3585 | else | |
3586 | val |= 0xc0000000; | |
3587 | ||
3588 | elfcpp::Swap<32, true>::writeval(wv, val); | |
3589 | ||
3590 | wv += 1; | |
3591 | this->ignore_gd_add_ = true; | |
3592 | } | |
abd242a9 DM |
3593 | else |
3594 | { | |
3595 | // Even if the delay slot isn't the TLS_GD_ADD | |
3596 | // instruction, we still have to handle the case | |
3597 | // where it sets up %o0 in some other way. | |
3598 | elfcpp::Swap<32, true>::writeval(wv, val); | |
3599 | wv += 1; | |
3600 | this->reloc_adjust_addr_ = view + 4; | |
3601 | } | |
f5314dd5 DM |
3602 | // call __tls_get_addr --> add %g7, %o0, %o0 |
3603 | elfcpp::Swap<32, true>::writeval(wv, 0x9001c008); | |
3604 | break; | |
3605 | } | |
3606 | break; | |
3607 | } | |
3608 | else if (optimized_type == tls::TLSOPT_NONE) | |
3609 | { | |
3610 | switch (r_type) | |
3611 | { | |
3612 | case elfcpp::R_SPARC_TLS_GD_HI22: | |
2ea97941 | 3613 | Reloc::hi22(view, value, addend); |
f5314dd5 DM |
3614 | break; |
3615 | case elfcpp::R_SPARC_TLS_GD_LO10: | |
2ea97941 | 3616 | Reloc::lo10(view, value, addend); |
f5314dd5 DM |
3617 | break; |
3618 | case elfcpp::R_SPARC_TLS_GD_ADD: | |
3619 | break; | |
3620 | case elfcpp::R_SPARC_TLS_GD_CALL: | |
3621 | { | |
3622 | Symbol_value<size> symval; | |
2ea97941 | 3623 | elfcpp::Elf_Xword value; |
f5314dd5 DM |
3624 | Symbol* tsym; |
3625 | ||
3626 | tsym = target->tls_get_addr_sym_; | |
3627 | gold_assert(tsym); | |
2ea97941 ILT |
3628 | value = (target->plt_section()->address() + |
3629 | tsym->plt_offset()); | |
3630 | symval.set_output_value(value); | |
f5314dd5 DM |
3631 | Reloc::wdisp30(view, object, &symval, addend, address); |
3632 | } | |
3633 | break; | |
3634 | } | |
3635 | break; | |
3636 | } | |
3637 | } | |
3638 | gold_error_at_location(relinfo, relnum, rela.get_r_offset(), | |
3639 | _("unsupported reloc %u"), | |
3640 | r_type); | |
3641 | break; | |
3642 | ||
3643 | case elfcpp::R_SPARC_TLS_LDM_HI22: | |
3644 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
3645 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
3646 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
3647 | if (optimized_type == tls::TLSOPT_TO_LE) | |
3648 | { | |
3649 | Insntype* wv = reinterpret_cast<Insntype*>(view); | |
3650 | ||
3651 | switch (r_type) | |
3652 | { | |
3653 | case elfcpp::R_SPARC_TLS_LDM_HI22: | |
3654 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
3655 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
3656 | elfcpp::Swap<32, true>::writeval(wv, sparc_nop); | |
3657 | break; | |
3658 | ||
3659 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
3660 | elfcpp::Swap<32, true>::writeval(wv, sparc_mov_g0_o0); | |
3661 | break; | |
3662 | } | |
3663 | break; | |
3664 | } | |
3665 | else if (optimized_type == tls::TLSOPT_NONE) | |
3666 | { | |
3667 | // Relocate the field with the offset of the GOT entry for | |
3668 | // the module index. | |
3669 | unsigned int got_offset; | |
3670 | ||
3671 | got_offset = target->got_mod_index_entry(NULL, NULL, NULL); | |
3672 | switch (r_type) | |
3673 | { | |
3674 | case elfcpp::R_SPARC_TLS_LDM_HI22: | |
3675 | Reloc::hi22(view, got_offset, addend); | |
3676 | break; | |
3677 | case elfcpp::R_SPARC_TLS_LDM_LO10: | |
3678 | Reloc::lo10(view, got_offset, addend); | |
3679 | break; | |
3680 | case elfcpp::R_SPARC_TLS_LDM_ADD: | |
3681 | break; | |
3682 | case elfcpp::R_SPARC_TLS_LDM_CALL: | |
3683 | { | |
3684 | Symbol_value<size> symval; | |
2ea97941 | 3685 | elfcpp::Elf_Xword value; |
f5314dd5 DM |
3686 | Symbol* tsym; |
3687 | ||
3688 | tsym = target->tls_get_addr_sym_; | |
3689 | gold_assert(tsym); | |
2ea97941 ILT |
3690 | value = (target->plt_section()->address() + |
3691 | tsym->plt_offset()); | |
3692 | symval.set_output_value(value); | |
f5314dd5 DM |
3693 | Reloc::wdisp30(view, object, &symval, addend, address); |
3694 | } | |
3695 | break; | |
3696 | } | |
3697 | break; | |
3698 | } | |
3699 | gold_error_at_location(relinfo, relnum, rela.get_r_offset(), | |
3700 | _("unsupported reloc %u"), | |
3701 | r_type); | |
3702 | break; | |
3703 | ||
3704 | // These relocs can appear in debugging sections, in which case | |
3705 | // we won't see the TLS_LDM relocs. The local_dynamic_type | |
3706 | // field tells us this. | |
3707 | case elfcpp::R_SPARC_TLS_LDO_HIX22: | |
3708 | if (optimized_type == tls::TLSOPT_TO_LE) | |
3709 | { | |
2ea97941 ILT |
3710 | value -= tls_segment->memsz(); |
3711 | Reloc::hix22(view, value, addend); | |
f5314dd5 DM |
3712 | } |
3713 | else | |
2ea97941 | 3714 | Reloc::ldo_hix22(view, value, addend); |
f5314dd5 DM |
3715 | break; |
3716 | case elfcpp::R_SPARC_TLS_LDO_LOX10: | |
3717 | if (optimized_type == tls::TLSOPT_TO_LE) | |
3718 | { | |
2ea97941 ILT |
3719 | value -= tls_segment->memsz(); |
3720 | Reloc::lox10(view, value, addend); | |
f5314dd5 DM |
3721 | } |
3722 | else | |
2ea97941 | 3723 | Reloc::ldo_lox10(view, value, addend); |
f5314dd5 DM |
3724 | break; |
3725 | case elfcpp::R_SPARC_TLS_LDO_ADD: | |
3726 | if (optimized_type == tls::TLSOPT_TO_LE) | |
3727 | { | |
3728 | Insntype* wv = reinterpret_cast<Insntype*>(view); | |
3729 | Insntype val; | |
3730 | ||
3731 | // add %reg1, %reg2, %reg3 --> add %g7, %reg2, %reg3 | |
3732 | val = elfcpp::Swap<32, true>::readval(wv); | |
3733 | val = (val & ~0x7c000) | 0x1c000; | |
3734 | elfcpp::Swap<32, true>::writeval(wv, val); | |
3735 | } | |
3736 | break; | |
3737 | ||
3738 | // When optimizing IE --> LE, the only relocation that is handled | |
3739 | // differently is R_SPARC_TLS_IE_LD, it is rewritten from | |
3740 | // 'ld{,x} [rs1 + rs2], rd' into 'mov rs2, rd' or simply a NOP is | |
3741 | // rs2 and rd are the same. | |
3742 | case elfcpp::R_SPARC_TLS_IE_LD: | |
3743 | case elfcpp::R_SPARC_TLS_IE_LDX: | |
3744 | if (optimized_type == tls::TLSOPT_TO_LE) | |
3745 | { | |
3746 | Insntype* wv = reinterpret_cast<Insntype*>(view); | |
3747 | Insntype val = elfcpp::Swap<32, true>::readval(wv); | |
3748 | Insntype rs2 = val & 0x1f; | |
3749 | Insntype rd = (val >> 25) & 0x1f; | |
3750 | ||
3751 | if (rs2 == rd) | |
3752 | val = sparc_nop; | |
3753 | else | |
3754 | val = sparc_mov | (val & 0x3e00001f); | |
3755 | ||
3756 | elfcpp::Swap<32, true>::writeval(wv, val); | |
3757 | } | |
3758 | break; | |
3759 | ||
3760 | case elfcpp::R_SPARC_TLS_IE_HI22: | |
3761 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
3762 | if (optimized_type == tls::TLSOPT_TO_LE) | |
3763 | { | |
2ea97941 | 3764 | value -= tls_segment->memsz(); |
f5314dd5 DM |
3765 | switch (r_type) |
3766 | { | |
3767 | case elfcpp::R_SPARC_TLS_IE_HI22: | |
3768 | // IE_HI22 --> LE_HIX22 | |
2ea97941 | 3769 | Reloc::hix22(view, value, addend); |
f5314dd5 DM |
3770 | break; |
3771 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
3772 | // IE_LO10 --> LE_LOX10 | |
2ea97941 | 3773 | Reloc::lox10(view, value, addend); |
f5314dd5 DM |
3774 | break; |
3775 | } | |
3776 | break; | |
3777 | } | |
3778 | else if (optimized_type == tls::TLSOPT_NONE) | |
3779 | { | |
3780 | // Relocate the field with the offset of the GOT entry for | |
3781 | // the tp-relative offset of the symbol. | |
3782 | if (gsym != NULL) | |
3783 | { | |
3784 | gold_assert(gsym->has_got_offset(GOT_TYPE_TLS_OFFSET)); | |
2ea97941 | 3785 | value = gsym->got_offset(GOT_TYPE_TLS_OFFSET); |
f5314dd5 DM |
3786 | } |
3787 | else | |
3788 | { | |
3789 | unsigned int r_sym = elfcpp::elf_r_sym<size>(rela.get_r_info()); | |
3790 | gold_assert(object->local_has_got_offset(r_sym, | |
3791 | GOT_TYPE_TLS_OFFSET)); | |
2ea97941 ILT |
3792 | value = object->local_got_offset(r_sym, |
3793 | GOT_TYPE_TLS_OFFSET); | |
f5314dd5 DM |
3794 | } |
3795 | switch (r_type) | |
3796 | { | |
3797 | case elfcpp::R_SPARC_TLS_IE_HI22: | |
2ea97941 | 3798 | Reloc::hi22(view, value, addend); |
f5314dd5 DM |
3799 | break; |
3800 | case elfcpp::R_SPARC_TLS_IE_LO10: | |
2ea97941 | 3801 | Reloc::lo10(view, value, addend); |
f5314dd5 DM |
3802 | break; |
3803 | } | |
3804 | break; | |
3805 | } | |
3806 | gold_error_at_location(relinfo, relnum, rela.get_r_offset(), | |
3807 | _("unsupported reloc %u"), | |
3808 | r_type); | |
3809 | break; | |
3810 | ||
9efe6174 ILT |
3811 | case elfcpp::R_SPARC_TLS_IE_ADD: |
3812 | // This seems to be mainly so that we can find the addition | |
3813 | // instruction if there is one. There doesn't seem to be any | |
3814 | // actual relocation to apply. | |
3815 | break; | |
3816 | ||
f5314dd5 DM |
3817 | case elfcpp::R_SPARC_TLS_LE_HIX22: |
3818 | // If we're creating a shared library, a dynamic relocation will | |
3819 | // have been created for this location, so do not apply it now. | |
3820 | if (!parameters->options().shared()) | |
3821 | { | |
2ea97941 ILT |
3822 | value -= tls_segment->memsz(); |
3823 | Reloc::hix22(view, value, addend); | |
f5314dd5 DM |
3824 | } |
3825 | break; | |
3826 | ||
3827 | case elfcpp::R_SPARC_TLS_LE_LOX10: | |
3828 | // If we're creating a shared library, a dynamic relocation will | |
3829 | // have been created for this location, so do not apply it now. | |
3830 | if (!parameters->options().shared()) | |
3831 | { | |
2ea97941 ILT |
3832 | value -= tls_segment->memsz(); |
3833 | Reloc::lox10(view, value, addend); | |
f5314dd5 DM |
3834 | } |
3835 | break; | |
3836 | } | |
3837 | } | |
3838 | ||
3839 | // Relocate section data. | |
3840 | ||
3841 | template<int size, bool big_endian> | |
3842 | void | |
3843 | Target_sparc<size, big_endian>::relocate_section( | |
3844 | const Relocate_info<size, big_endian>* relinfo, | |
3845 | unsigned int sh_type, | |
3846 | const unsigned char* prelocs, | |
3847 | size_t reloc_count, | |
3848 | Output_section* output_section, | |
3849 | bool needs_special_offset_handling, | |
3850 | unsigned char* view, | |
3851 | typename elfcpp::Elf_types<size>::Elf_Addr address, | |
364c7fa5 ILT |
3852 | section_size_type view_size, |
3853 | const Reloc_symbol_changes* reloc_symbol_changes) | |
f5314dd5 DM |
3854 | { |
3855 | typedef Target_sparc<size, big_endian> Sparc; | |
3856 | typedef typename Target_sparc<size, big_endian>::Relocate Sparc_relocate; | |
3857 | ||
3858 | gold_assert(sh_type == elfcpp::SHT_RELA); | |
3859 | ||
3860 | gold::relocate_section<size, big_endian, Sparc, elfcpp::SHT_RELA, | |
3861 | Sparc_relocate>( | |
3862 | relinfo, | |
3863 | this, | |
3864 | prelocs, | |
3865 | reloc_count, | |
3866 | output_section, | |
3867 | needs_special_offset_handling, | |
3868 | view, | |
3869 | address, | |
364c7fa5 ILT |
3870 | view_size, |
3871 | reloc_symbol_changes); | |
f5314dd5 DM |
3872 | } |
3873 | ||
3874 | // Return the size of a relocation while scanning during a relocatable | |
3875 | // link. | |
3876 | ||
3877 | template<int size, bool big_endian> | |
3878 | unsigned int | |
3879 | Target_sparc<size, big_endian>::Relocatable_size_for_reloc::get_size_for_reloc( | |
3880 | unsigned int, | |
3881 | Relobj*) | |
3882 | { | |
3883 | // We are always SHT_RELA, so we should never get here. | |
3884 | gold_unreachable(); | |
3885 | return 0; | |
3886 | } | |
3887 | ||
3888 | // Scan the relocs during a relocatable link. | |
3889 | ||
3890 | template<int size, bool big_endian> | |
3891 | void | |
3892 | Target_sparc<size, big_endian>::scan_relocatable_relocs( | |
f5314dd5 DM |
3893 | Symbol_table* symtab, |
3894 | Layout* layout, | |
6fa2a40b | 3895 | Sized_relobj_file<size, big_endian>* object, |
f5314dd5 DM |
3896 | unsigned int data_shndx, |
3897 | unsigned int sh_type, | |
3898 | const unsigned char* prelocs, | |
3899 | size_t reloc_count, | |
3900 | Output_section* output_section, | |
3901 | bool needs_special_offset_handling, | |
3902 | size_t local_symbol_count, | |
3903 | const unsigned char* plocal_symbols, | |
3904 | Relocatable_relocs* rr) | |
3905 | { | |
3906 | gold_assert(sh_type == elfcpp::SHT_RELA); | |
3907 | ||
3908 | typedef gold::Default_scan_relocatable_relocs<elfcpp::SHT_RELA, | |
3909 | Relocatable_size_for_reloc> Scan_relocatable_relocs; | |
3910 | ||
3911 | gold::scan_relocatable_relocs<size, big_endian, elfcpp::SHT_RELA, | |
3912 | Scan_relocatable_relocs>( | |
f5314dd5 DM |
3913 | symtab, |
3914 | layout, | |
3915 | object, | |
3916 | data_shndx, | |
3917 | prelocs, | |
3918 | reloc_count, | |
3919 | output_section, | |
3920 | needs_special_offset_handling, | |
3921 | local_symbol_count, | |
3922 | plocal_symbols, | |
3923 | rr); | |
3924 | } | |
3925 | ||
3926 | // Relocate a section during a relocatable link. | |
3927 | ||
3928 | template<int size, bool big_endian> | |
3929 | void | |
3930 | Target_sparc<size, big_endian>::relocate_for_relocatable( | |
3931 | const Relocate_info<size, big_endian>* relinfo, | |
3932 | unsigned int sh_type, | |
3933 | const unsigned char* prelocs, | |
3934 | size_t reloc_count, | |
3935 | Output_section* output_section, | |
3936 | off_t offset_in_output_section, | |
3937 | const Relocatable_relocs* rr, | |
3938 | unsigned char* view, | |
3939 | typename elfcpp::Elf_types<size>::Elf_Addr view_address, | |
3940 | section_size_type view_size, | |
3941 | unsigned char* reloc_view, | |
3942 | section_size_type reloc_view_size) | |
3943 | { | |
3944 | gold_assert(sh_type == elfcpp::SHT_RELA); | |
3945 | ||
3946 | gold::relocate_for_relocatable<size, big_endian, elfcpp::SHT_RELA>( | |
3947 | relinfo, | |
3948 | prelocs, | |
3949 | reloc_count, | |
3950 | output_section, | |
3951 | offset_in_output_section, | |
3952 | rr, | |
3953 | view, | |
3954 | view_address, | |
3955 | view_size, | |
3956 | reloc_view, | |
3957 | reloc_view_size); | |
3958 | } | |
3959 | ||
3960 | // Return the value to use for a dynamic which requires special | |
3961 | // treatment. This is how we support equality comparisons of function | |
3962 | // pointers across shared library boundaries, as described in the | |
3963 | // processor specific ABI supplement. | |
3964 | ||
3965 | template<int size, bool big_endian> | |
3966 | uint64_t | |
3967 | Target_sparc<size, big_endian>::do_dynsym_value(const Symbol* gsym) const | |
3968 | { | |
3969 | gold_assert(gsym->is_from_dynobj() && gsym->has_plt_offset()); | |
3970 | return this->plt_section()->address() + gsym->plt_offset(); | |
3971 | } | |
3972 | ||
3973 | // The selector for sparc object files. | |
3974 | ||
3975 | template<int size, bool big_endian> | |
3976 | class Target_selector_sparc : public Target_selector | |
3977 | { | |
3978 | public: | |
3979 | Target_selector_sparc() | |
3980 | : Target_selector(elfcpp::EM_NONE, size, big_endian, | |
03ef7571 ILT |
3981 | (size == 64 ? "elf64-sparc" : "elf32-sparc"), |
3982 | (size == 64 ? "elf64_sparc" : "elf32_sparc")) | |
f5314dd5 DM |
3983 | { } |
3984 | ||
2ea97941 | 3985 | Target* do_recognize(int machine, int, int) |
f5314dd5 DM |
3986 | { |
3987 | switch (size) | |
3988 | { | |
3989 | case 64: | |
2ea97941 | 3990 | if (machine != elfcpp::EM_SPARCV9) |
f5314dd5 DM |
3991 | return NULL; |
3992 | break; | |
3993 | ||
3994 | case 32: | |
2ea97941 ILT |
3995 | if (machine != elfcpp::EM_SPARC |
3996 | && machine != elfcpp::EM_SPARC32PLUS) | |
f5314dd5 DM |
3997 | return NULL; |
3998 | break; | |
3999 | ||
4000 | default: | |
4001 | return NULL; | |
4002 | } | |
4003 | ||
7f055c20 | 4004 | return this->instantiate_target(); |
f5314dd5 DM |
4005 | } |
4006 | ||
4007 | Target* do_instantiate_target() | |
7f055c20 | 4008 | { return new Target_sparc<size, big_endian>(); } |
f5314dd5 DM |
4009 | }; |
4010 | ||
4011 | Target_selector_sparc<32, true> target_selector_sparc32; | |
4012 | Target_selector_sparc<64, true> target_selector_sparc64; | |
4013 | ||
4014 | } // End anonymous namespace. |